A recent study shows that brisk walks boost memory in older adults. And makes your hippocampus swell visibly on MRI. I bet this also applies to younger people.
The hippocampus is a worm-like structure deeply buried in your brain that is involved in memory formation. In Alzheimer, it is the part of your brain that will show the first signs of degeneration. A youthful hippocampus gives you mental plasticity, the opposite of which would be the obnoxious inflexibility that some older people show. About six to nine miles a week in this study was linked to better brain function. Walking even more did not seem to have more effect on the brain.
It comes down to walking ten minutes in one direction, turning around and walking back ten minutes, which can be done during lunch hour.
Another study showed that people who walk faster live longer. That bodes badly for me – I am a slow poke. But we can safely deduct that people who don’t walk will not make it long at all.
Walking also boost mood. If I would be a moody person (which I am not), I would do three things: go for a daily walk during daylight, end every hot shower with a cold one, and take herbal preparations – in women particularly, herbs against PMS or helping with post-menopause. Not to mention that I would turn to fresh, nourishing food and away from junk.
Walking per se is good for you. Two other studies have shown, that the effect is even better if you walk on uneven surface – like on pebbles, at a beach or in hilly terrain. Walking on pebbles decreases high blood pressure, and makes you less likely to get Parkinson’s. Using more muscles and consequently more brain can explain these results.
The most dramatic effect, I think, that daily walking can have – besides on memory, longevity, hypertension, Parkinson’s and mood – is that light boost vitamin D production under your skin – even if it is just the pale little area of your face reaping the rays. Vitamin D has become an important research focus as it wards off bone loss, cancer, multiple sclerosis and infections.
Walking will also lead to less weight and fight the dreaded metabolic syndrome (diabetes, high blood fats and hypertension) better sleep – all exercise does. And better sleep has been shown to increase overall performance, mood and resistance to infections.
In New England presently, walking the icy streets among huge snow banks is not that enticing. But I bet snow shoveling has all the above benefits, too – if you avoid hurting your back and don’t slip on the ice. At least I hope. Because I spend the morning digging out our walkway and garage driveway. At least this I know: The cold stimulus is a trigger for better immune function: Snow-shoveling in freezing temperatures improves my ability to better fend off flu and the common cold. Read More
Blog: On Health. On Writing. On Life. On Everything.
Autoimmune Diseases
July 11, 2010
In autoimmune diseases the body’s immune system turns against cells of the own body, slowing destroying them, creating havoc like thyroid problems, allergies, arthritis and muscle weakness, skin afflictions, diabetes type I, neuropathy, autism (at least some forms), fibromyalgia, kidney failure, multiple sclerosis, urticaria, psoriasis, chronic fatigue, bowel troubles – and many more.
Autoimmune diseases are on the rise – more people are suffering from them. Doctors are baffled and, on the whole, helpless. Strong medications like cortisone with myriad side-effects are employed, without getting to the root cause of autoimmune diseases.
Some researchers suspect that our modern diet plays a big role; others blame pollutants in the environment or the fact that we have much less intestinal parasites (compared with cave men) which makes the idle immune system turning against the self. Modern medical drugs (to name just one example - statins - that can cause an autoimmune muscle disease) might contribute.
Of course, I don’t have all the answers either – but these are some ideas that helped patients:
• Make sure you don’t have a gluten intolerance. Test are notoriously unreliable; a better idea is to leave out all gluten (wheat, rye, barley, oats) and see if you improve. Many people feel so much better already after a week off gluten. Others need up to a year.
• Autoimmune diseases hurt the body at different organs. They all have in common an inflammatory effect. To do away with SAD (Standard American Diet) should therefore be the most important step: No sugar, no sweeteners, no white starches, no dairy (which might be the main culprit here!), no bad fats (nothing fried and processed). Instead: vegetables, vegetables, vegetables – and herbs, legumes, a bit meat and fish (but no deli). If you are not willing to cook for yourself and take yourself out of the mainstream food insanity, my hope for your recovery is slim.
• Moderate exercise: For a minimum, go for a walk everyday. Exercise produces anti-inflammatory molecules in your body.
• Bright light: Get some light outdoors. Not to the point of burning (autoimmune patients often have photo-sensitivity and are prone to easy sunburns). But light is important. If you have dark skin, you need more light. – Vitamin D might be what is protecting. I usually don’t give supplements; going outdoors daily and eating cod liver (delicious!) once a month should do the trick.
• Herbs (don’t take them all at once; try one after the other and give it time to work):
---Resveratrol; a strong anti-oxidant. Remember, there is far more resveratrol in the green vine leaves than in red wine – and nearly none in white wine and grape juice.
---Astragalus has shown some benefit. Just know that allergies are frequent in patients with autoimmune diseases. So, if you show signs of intolerance (upset stomach, aching joints, rash, etc.), stop the herb.
---Turmeric (its main ingredient curcumin) has anti-inflammatory properties is.
---Green tea.
---Korean Gamgungtang.
---Padma28, a Tibetan formula. There are some controversies about this. Talk this through with a knowledgeable physician.
---Zyflamend, a blend of several anti-inflammatory herbs. Make sure you don't have an allergy to any of its components.
---Artemisia (vulgaris and annua) both have shown some anti-inflammatory effects.
---Olive leaf extract.
---Cordiceps, a medicinal mushroom. – Eating mushrooms generally has a good effect on the immune system. Just never eat them raw (they could cause cancer): Always cook mushrooms!
---Alfalfa sprouts.
---Gluscosamine, while not an herb in the strict sense, has shown anti-inflammatory promise.
---Bupleurum, a Chinese medicinal plant.
• Be careful with vaccinations. A link between shots and autoimmune disease is suspected by some researchers. That does not mean you should avoid all vaccinations; just stick to the essential ones. Discuss this with your physician – who hopefully has an open ear for alternatives. The link between vaccines and autoimmune disease might come from the suppressing of the normal function of the body, namely fighting viruses off; or might be a function of certain additives in vaccines like mercury, aluminum and squalene.
• Selenium might be missing in your diet (Brazil nuts have the highest amount of selenium, but most nuts have some; seafoods are more moderate sources of selenium). As you might have noticed, I am no friend of supplements: minerals (and vitamins) from a bottle are not the same, and have even been proven to be harmful by recent studies. – With nuts always stay aware that you might develop an allergy at any time.
• Add some good anti-inflammatory fish oil capsules (you should not belch up a fishy taste!) daily.
• Help your intestines with probiotics. The bowels might be at the root of autoimmune diseases: A chronically inflamed bowel (“Leaky Gut Syndrome”) leads to inflammation in other parts of your body.
• One study showed that calorie restriction might decrease inflammation. I would not aim for weight loss per se; eating a fresh diet might lead to weight loss anyway. But a one-day vegetable broth fast per week (see an earlier blog entry here) might be a good idea. – Interestingly, one study showed that fasting during infectious fevers reduced the risk of developing consequent autoimmune disease.
• Don’t try this at home … but nicotine seems to protect from autoimmune disease. So does cannabis (which is still illegal!).
If you want to know which of all the above ideas are most important – probably these: NO DAIRY, NO GLUTEN! Read More
Weighing In
June 21, 2010
How often should you jump on the scale?
For many years, I never recommended to patients to weigh themselves daily (first thing in the morning). The prevailing medical opinion was that weighing oneself triggered anxieties that might end in eating disorders like anorexia and bulimia.
Contrary to what I said to my patients, however, I have weighed myself my whole life (nearly) every morning – and have kept the same weight since age twelve. Except for pregnancies, gaining twenty pounds with my daughter, forty with my son. The difference? In both cases, relentless morning sickness. With my daughter, eating or even thinking of food made me throw up; with my son, eating calmed the sickness. During pregnancy, I did not care what I weighed and how I looked; all I cared was the baby I was expecting. So I followed my body’s whims and cravings. Including the incredible craving for a lobster at a very inconvenient time…
My body feels well only within a very tight margin: Two pounds less, and faintness grips me. Two pounds more, and stuffiness prevents me bending forward.
My personal weight story made me absolutely unacceptable for several overweight patients who stated that I had never been in their shoes and could therefore not advise them. I respect that view. But it would also mean that one can’t be a good doctor for a cancer patient if one didn’t have experience with the dreaded disease. Or could couldn’t treat a heart attack because … you are getting the idea. (On the other hand, the notion that better doctors come from personal experience with serious illness, is worth spinning out. The A+ nerds who populate our medical schools – half of them should be replaced with compassionate, common-sensical young men and women).
A study showed that people who weigh themselves more often also lost more weight. That takes this discussion beyond my personal story – and here it becomes interesting.
French women supposedly don't gain weight as they age. Which means if the scale tells them they have gained a pound or two, they take action. And responsibility. That might be part of the French Paradox - that the French live longer but eat more fat. Might be they eat fat - and then put in a salad day.
A scale is a reality check. If you want to avoid looking the facts in the face – your decision. I like to confront bad situations – weight gain, disease, divorce, death (why do nearly all adverse events start with a "d"?). That led me one time to lie down in a casket and pull the lid shut, just to see how it was. It was surprisingly peaceful. What I found out in the coffin: It was nothing to fear. Read More