Sunday, January 28, 2018

Krav Maga and Self Defense Topics #1

Slashing versus Stabbing
Interesting comparison of knife attacks. My summary of the article is sometimes stabbing is better and sometimes slashing is better, and most of us thankfully will never have to actually find out first hand.

Sticks and How to Attack with Them
My instructors always remind us to be good attackers as that's the only way that your partner will learn. I'm guilty of occasionally pulling my punches on my partners in the interest of not injuring them, but I'm trying to be more aggressive while still demonstrating good control. Plus, in the world of self-defense fighting, training in how to be a bad guy is as helpful as the training to be a good guy. This article about how to attack with a stick is good stuff if you're trying to learn how to defend well against it. Hopefully you don't run into someone who knows how to do this, but the mechanics are very helpful to understand. Plus there's a cool video of pistons in there too.

What's Your Easy to Exploit Weakness?
Your hair, footwear, jewelry or your man-bag? This piece is helpful in thinking it through.

Verbal Skills in Your Toolkit
"In personal and home-defense situations, verbal skills can be important. But don’t assume yelling forceful commands is always the answer. Sometimes it’s better to speak softly or not at all. It’s up to you to gauge the situation and respond appropriately. You’ve got to think before you speak."

Friday, October 06, 2017

Supplements I Have Loved: The Sleep Issue

I’m not a doctor and only know what I have read and documented below. I’m not offering you medical advice in any way, shape or form. You should talk to your doctor before doing anything I or anyone else suggests to you.
I am writing this at the same time as I nurse my injured eye. I blame this recent kick boxing mishap on my lack of sleep the night before. Exercise can reward you with better sleep, but I would suggest that sleep be prioritized over exercise. Besides impacting reaction time and thus making you more prone to injury, we know that sleep affects metabolism, the ability to learn, and even moral judgment. Too much sleep can also be a problem. As we age, our ability to sleep uninterrupted gets more difficult, even though we still require the same amount of sleep. There’s a lot of advice out there and a lot of people hawking fixes to our sleep woes. It’s enough to make you stay awake at night fearing too little or too much sleep.

Turn off your gadgets at sundown, you damn millennial. Photo by Abbie Bernet on Unsplash

Research suggests that adults typically need seven to nine hours of sleep a night. Since your mileage may vary, the easiest way to figure out your ideal amount of sleep is to go for an extended period of time going to bed when you are tired and waking up without an alarm clock, like on a vacation. Preferably doing it in a darkened, cool room with no electronics after sundown (I know, this seems impossible). You can usually find an ideal number of hours and ideal time to go to bed and get up. In a perfect world, you wouldn’t have to wake up with an an alarm, but your boss may disagree, so my advice is that you set a time that you always get up in the morning and then work backwards for when to go to bed so that you hit your goal. 

Reliving my undergraduate days in UNM Library.

I have naturally awakened at 5:30 AM for years, a vestige of the 6:30 AM study groups in business school a decade ago. I’m a big fan of early morning exercise. No one in the continental US wants your time at 6 AM. There is no other time like that in the day. I’m currently working on getting up earlier in the day, targeting 4:30 AM so that I can do some more morning activities before rushing off to exercise at 6:00 AM. Also, it makes me feel like a Navy SEAL, which is my fantasy lifestyle. But instead of jumping out of a helicopter and double-tapping bad guys, I’m trying to add light mobility work, breathing practice and journaling to that time. But for now, I’m usually just lying in bed and grumbling until I have to get up and rush to exercise. The hardest part is just getting my magic seven to eight hours of sleep. That’s an early bedtime.

Old dude, dominated by sleep. Photo by Alex Iby on Unsplash

To get to that kind of early to bed, early to rise rhythm, I have nixed prescription medication to help me sleep. Besides not liking the effects of sedatives in general, Ambien gave me truly horrifying nightmares on a trip to Europe (not to mention that the list of side effects is as long as your arm) and I got violently ill on a flight to Japan after taking another prescribed sleeping pill, to the horror of the staid Japanese people around me (full disclosure: that one was my fault). Over the counter sleeping aids and antihistamines generally frighten me and leave me feeling groggy the next day. While I am trying to practice good habits about bedtime and waiting for my body to adapt to a new schedule, I do supplement specifically to support good sleep. My physician friend tells me I’m doing it backwards; that I should be working on my “sleep hygiene” first and then supplementing once I have mastered the right habits. As usual, I’m trying to take a shortcut with these items.

Sleep, cardiovascular health, stress
Possibly helpful for sleep - TAPER DOWN
Sleep, relaxation, also good combo with caffeine
Sleep, blood pressure,  and stress
Sleep, athletic performance

The Minerals - Magnesium and Potassium
If you exercise a lot, you probably sweat a lot. I do. Sweating and physical activity can deplete magnesium and potassium in the body. The NIH thinks you probably aren’t getting enough magnesium and there are many reasons including dehydration that you may not be getting enough potassium. Severe dehydration is what leads to cramping, especially in the legs. That’s why most sports drinks (like FITAID) have lots of magnesium and potassium in them. Restless leg syndrome may be partly related to moderate dehydration and can be disruptive to sleep. Potassium is a factor in the sleep cycle, although the mechanism is not quite understood yet. Besides your wiggly legs, the magnesium and potassium combo is great for metabolic health and probably great for regulating cortisol levels, blood pressure, preventing osteoporosis in the ladies as well as migraines. They’re also critical to staying alive.

The Amino Acids - Ornithine, Theanine, Tryptophan
Now we start to get a little more esoteric. Ornithine is one of the non-essential amino acids, which means that our bodies can produce it naturally. It is the precursor to another amino acid, Arginine, which is weakly linked to improved athletic performance. Both Ornithine and Arginine are produced in small amounts by our bodies and ideally, we can get more from diet. There are no known safety issues with Arginine, even in large doses. There’s a reasonably solid study from Japan that suggests Ornithine helps with stress, sleep and my favorite, “reducing anger.” The study is relatively small but since there aren’t any known safety issues, I say bring on anything that could potentially help me sleep better.

Theanine, an amino acid found primarily in green teas, is a big deal in Japan. A common food additive favored for its relaxing effects as well as its umami savoriness, it has been a common item in the Japanese diet since it was approved by the Japanese Ministry of Health and Welfare in 1964. Theanine has been approved in the US as a dietary supplement and the combo of theanine and caffeine is a big favorite of the nootropic crowd. I actually take theanine in this fashion myself. A pair it with my morning coffee (and occasional MCT oil) as a way to take away the jitters from coffee on an empty stomach and get an enhanced focus. 


You can certainly take it before bedtime as well to get the relaxing benefits of it, although it may not stimulate sleep. While the Japanese have been consuming it for some time and its popularity among the body hackers suggests that a lot of people have experimented with it, the number of clinical studies establishing its safety are still rather small. The Berkeley Wellness Newsletter recommends the tried and true benefits of drinking green tea in the morning as opposed to taking a supplement for your theanine fix.

Researching supplements for this series has encouraged me to inventory everything I’m ingesting. Tryptophan is one that merits closer attention. Similar to the others, tryptophan is an essential amino acid. You can get it in your diet from eating a variety of plant and animal sources. Many people have heard of turkey as a source of tryptophan, but there are much better sources of the amino acid, including eggs, soy, and cheese. Tryptophan is a building block of serotonin, a neurotransmitter that  affects mood and brain functioning. The evidence suggests that it is possibly effective for premenstrual mood swings and smoking cessation, but the connection to improved sleep is weak, even though tryptophan is a precursor to the hormone melatonin (more about it below). In 1990, trypotophan supplements were recalled from the US market due to an outbreak of eosinophilia-myalgia syndrome (EMS), with 1500 reports of severe illness and 37 deaths. This was probably related to a contaminated batch of tryptophan from Japan, but conservative advice is to avoid tryptophan supplements altogether and instead seek sources of it in diet. Another concern is that tryptophan could interact adversely with anti-anxiety drugs and sedatives (e.g. valium) as well as medications to treat depression and could possibly inhibit the body’s ability to absorb other amino acids.

Sleeping on the job or office death cult? No one knows for sure.

This is on my “use sparingly” list from now on. Melatonin is is a hormone that is produced by the pineal gland in animals and regulates sleep and wakefulness. While Hunter S. Thompson had some choice ideas about the extract of a pineal gland, its primary output is the chemical that tells your body it is time to sleep. Since it naturally occurs in the body, it has been a very popular supplement and achieved US prominence in the 1990s, although even then its use was cautioned. Additionally, studies show that melatonin nets users an additional eight minutes of sleep over placebos.

Melatonin, after long walks at the end of the day in sunlight was a primary remedy against jet lag when I was traveling regularly to the west coast. It takes a little bit of searching to find a dosage that is 1mg or less and I’ve seen bottles of 5 or 10mg on friends and families’ shelves. Those doses are excessive (that’s a lot of hormones for anyone to be taking), may backfire (some users report abrupt interruptions of sleep shortly after taking it) and melatonin does not have much clinical support as a treatment for insomnia.  There are not many studies of the long-term effects either.

Friday, September 15, 2017

Supplements I Have Loved

We are eating very different food than our grandparents and most certainly different from our more distant ancestors. Not only has the nutritional density of food decreased over time due to modern farming, researchers are now suggesting that the carbohydrate density of food has increased as well, making plants and all the things that consume them less healthy by impacting metabolism at the same time as the nutrients are diminished. This has the unfortunate effect of making us consume more while benefiting less.

I'm not Kurzweil crazy - yet.
I’d like to think that this is why I’m so interested in nutritional supplements as I have slowly gotten into the habit of consuming a wide variety of them daily. While it stands to reason that we need to compensate for the lack of nutrition in our diets, if I’m honest with myself I really take supplements for the same reasons that we over consume medications; we’re all looking for a quick fix or an edge, enhancing ourselves to productivity, longevity and general well-being. While my pace of experimentation has slowed, I have landed on a pretty long standing core of vitamins and similar items I take regularly. Various fitness, nutrition and quantified-self types have inspired me over the years and while I avoid reading much from them anymore, I have been guilty of taking too much advice from self serving and dubious bloggers and not enough from good research.

I decided to write this to share what works for me and also to do a little inventory on my intake of supplements and look into whether I’m taking anything that is either a waste of money or possibly unhealthy for me. I found a few items that are possibly bad for me or a waste of money.

Here’s an utterly overwhelming list of what I’m currently ingesting. There are a couple of nootropics that I consume every now and again, but that’s another study. I’ve highlighted a few that I’m either looking into,  tapering off of, or eliminating completely.

Bundled with Magnesium
N/A for men
Good for sleep, cardiovascular health, stress
Good for joint pain but use for inflammation is not supported by research
Vitamin K (K2)
Anti-cancer, bone health (for women) and CV health
Glucosamine Sulfate
Joint pain, arthritis
Bone density, weight loss and depression
Weak evidence showing it helps eye health
Possibly helpful for sleep
Methyl Folate
May be synergistic with Vitamin B12
Vitamin C
Immune health, eye health
Fish Oil
Anti-cancer, aging, brain and heart health
Blood pressure, sleep/stress
Eyes, inflammation, CV health
Eyes, necessary vitamin, paired with Methyl Folate
3b CFU
Probiotics to support mood and mental health
Athletic performance (weak support for it and Arginine)
Good combo with caffeine for alertness and focus
Research supports improvements in memory especially for older adults
Improves sleep
Vitamin D
1000 IU
Bone health, immune system support
Eye health, immune system
Athletic performance

I will detail my thinking on each of these over time, but I will start with my favorites first.

If I’m thinking about my favorite supplements, which means the ones I’d rather not ever give up, creatine probably tops the list. When it began to be commonly used in the 70’s, there was a fair amount of concern about its safety, especially when it was mixed up with anabolic steroids and all the other stupid things body builders engaged in back then. The Schwarzenegger-era body builders were the body hackers of their time. But what clinical studies proved out was that at least creatine wasn’t going to kill people like some of the other behaviors that were popular at the time.

Not actually sure what this is, but typical for the time. Credit:

I won’t go deeply into the science here, but creatine is found in meats and seafood and helps stimulate production of Adenosine triphosphate or ATP. ATP is the energy currency of biological processes like our muscles and is especially relevant to short term bursts of energy. Creatine has been definitively shown to improve athletic performance in the short term in younger athletes and can increase muscle mass in people as they age. Vegetarians in particular can reap significant gains from supplementing with creatine. In general, it has been consumed for some time now and it is generally shown to have few side-effects. I guess this is where I write the following: I’m not a doctor and only know what I have read and documented below. I’m not offering you medical advice in any way, shape or form. You should talk to your doctor before doing anything I or anyone else suggests to you.

A pretty comprehensive overview of the research on creatine is available at the NIH site and WebMD is good for dosing and contraindications and Wikipedia ties up the science and the research handily.