My experiment is going on. Of course, I have no idea if it is really new brown fat that turns me into an oven every time after my daily cold laps in the pool. For all I know, I could have a not-yet-recognized infection or any other disease that makes me burn up. Only thing I know is that I feel terrific – for the moment.
But for the sake of an interesting exploration, let’s stick with my brown fat hypothesis. This is what I have learned about about brown fat so far:
1. It used to be thought that only babies (protecting them from hypothermia) or bears (keeping a reasonable core temperature during hibernation) have brown fat. It turns out that traces of brown fat are still around in adult people. – A little aside: Other ways to increase body temperature are increasing surrounding temperature, moving about, shivering, and eating certain “warming” foods like cinnamon, ginger, onions, garlic, rutabaga, coriander, cloves – interestingly foods often used in the winter kitchen. But there is no hint that those foods increase brown fat. Or a shred of a proof that a so-called "Brown Fat Diet" will increase that precious tissue in your body.
2. Brown fat can help weight loss by increasing metabolism speed.
3. Brown fat also can decrease elevated insulin-resistance (also called pre-diabetes) and a diabetic situation.
4. Brown fat can be induced to increase by cold exposure – be it by swimming in cold water, immersing in a tub filled with ice water, or dancing in a walk-in food refrigerator (don’t you wish you had one of those at home??).
5. Needless to say, there are already pharmaceutical firms are already working on drugs that might trigger growth of brown fat, without going through the ado of cold exposure. The easy way out, I call it. And definitely not an interesting way, if you ask me.
I like to think about cold-induced brown fat as one of the benefits of moderate stress. We all know that stress is bad for you, don’t we? Not necessarily though. Moderate stress might be what makes the body function in the way Nature intended it. With heated dwellings with forgo the winter cold stress – and get sick for it, lacking brown fat. With air-conditioning in the summer, we miss out on the sweating which give our body a good cleanse of all the toxins – and get sick for it. Occasional hunger stress (fasting!) is another beneficial stress mechanism. Not only do we get healthier on occasional fasting, and live longer with less belly ballast, it also seems we get to be happier with fewer pounds – and less depressed.
One estimate is that there are about three million residential swimming pools in California (I am not even mentioning the pools in Florida and all across southern U.S.A.). If these pools are anything like our pool here in La Jolla, all those turquoise eyes should be gazing at the sky, basically unused. All, of course, using up precious water resources. How about using them? If you are in decent health (ask your physician), you start by doing a single lap across your pool. Tomorrow two, and every day one more until you reach twenty-one laps. The brown fat will appear very fast – and will help you lose weight.
Putting on brown fat, however, might mean walking a fine line: You want to increase your metabolism by cold exposure. But you don’t want to get where most winter swimmers end up: with more fat on their bodies. Fat (of any kind) protects against cold, and makes you better able to withstand long swims in icy water. Don’t go there! Read More
Blog: On Health. On Writing. On Life. On Everything.
Is It January – Or Is It Me?
January 15, 2011
We had a whopper of a snowstorm, and since then we haven’t gotten out of the freezing numbers. Tonight they predict single-digit numbers (Fahrenheit, that is; to those who believe in Celsius, as I do, it is supposed more than ten degrees below zero).
Still, in the morning I am doing my cold sitzbath. Now the water is so cold that when I count to twenty-one for my leg moving to swish the water over my thighs, I feel pins and needles, and not much more. When I get out of the tub, my lower half feels like non-existent, it is so cold.
But within a minute of toweling off and walking on tiptoes, I get nice, tingling warmth’s flooding all over, my toes are all pink, and I am ready for the day.
Do I push the cold too much – to an extent that it becomes unhealthy?
I don’t think so. Around holiday time, I had a period where I felt cold all the time. Even if the heat was higher than normal, I felt that deep chill inside. Not sure if I was breeding a virus that never came out because I usually nip a stuffy nose and a bit of a sore throat in the bud with herbs. Or if it was the not-so-healthy food we all succumb to around the holidays – even me. My cookies are gluten-free – but they are still cookies, loaded with sugar and butter (I know because I baked them).
When I felt so cold for a few days, I decided it was not wise to continue my cold sitzbaths; I just wasn’t sure what I was hatching. Instead I did quick cold washs in the bathtub.
Why I tell the story? Because in Natural Medicine we believe that not every body is the same, not even every body is the same every day, and one should heed the body’s warning signs. Not getting warm anymore certainly is such a sign - and pushing through it would be foolish.
Some people can do cold exposure like sitzbath or cold shower only in the early afternoon – because that’s the body’s “hottest” time. The very elderly and the frail should not tough it out at all with cold showers. And never, ever try winter swimming! But everybody probably benefits from a very fast cold wash-down.
A few years ago, for my patients, I put together a pamphlet about how to get warm; constant cold hands and feet was a complaint I heard quite often. What do you do to get warmer?
Bundling up is the first that comes to mind – and important to get warm NOW. But in the long run, it is counterproductive: The warmer you dress, the more you heat your rooms, the less your body generates heat – it loses the ability.
A cold wash or even a very short cold shower (not more than a few seconds) will acclimatize the body to colder temperatures. In the long run, it will also reduce colds. Besides it is good against high blood pressure, and good for skin, lungs, glands and mood (don’t take a cold shower with uncontrolled high blood pressure though, or with Raynaud’s or other arterial diseases!). – But if you haven’t started your cold shower yet, it might be wiser to wait until the three coldest months (January, February, March) are over. Try cold washs until then: With a face cloth wash yourself down quickly with cold water (change face cloths daily!) – unless you live in Florida or so.
Other methods to get warm: A hot green tea or a hot herbal tea. Or try a warm soup.
Certain herbs produce heat in the body: Interestingly, the spices we often use in Christmas cookies produce warmth - like cinnamon, vanilla, ginger, coriander seeds, cloves – they warm up the cold season (as does brown sugar, by the way. Go light on the sweets because you’ll feel warmer, but also heavier). Spices we call “hot” like paprika, curry, cayenne, coriander leaves (also called cilantro) have a cooling effect – as does white sugar.
If you are cold, you can put a hot water bottle in your bed in the evening – we sleep with window open even at these temperatures – and our bedroom is an ice cellar at this time of the year. You can also use an electric pad – but never when you are in bed. Heat it up about half an hour before retiring. Some people like the warmth at their feet. I like it at the small of my back – because that’s where my center is – and the qi-producing adrenal glands.
Ah, here we are at the Chinese qi – and the bad news. Having cold hands and feet (or worse, a cold core like I had around the holidays) is a sign of too little life energy. The Chinese content that the foods we have can help a bit with qi. But what really generates qi is: movement.
When I was cold all the time, I realized that I had slacked off in my exercises – no wonder during holiday stress. I revamped. Since I am still no friend of a gym I do more of the little things I can do at home, between spurts of writing: Pulling myself up the bar (we have one installed in the doorway to the basement – mostly for the guys in the family), rolling around on my yoga ball, doing little exercises with a small, heavy ball, jumping rope, and making sure I will go for a walk at least once a day. Better twice: One for filling up my vitamin D needs during the day, and once in the dark after dinner with my husband, filling up my need for connection with my spouse.
Cold hands and feet all the time? I learned it the hard way: Only movement really helps. Without movement, we are creeping faster toward the final coldness. Read More
The Super Foods … Bunkum
April 27, 2010
You have read and heard it so often: The Ten best foods, the Five Best Fruits, The Super Foods Without Which You Will Die...
Some of the lists contain meritable foodstuffs, often judged by their anti-oxidant contents. Apart from outright scams (brand-names) on those super-food lists, the usual suspects are blueberries (all the berries, really), broccoli, walnuts, spinach, beans, cinnamon (without the bun), almonds, avocados.
There is nothing wrong with these foods. But the concept of “super foods” is all wrong.
If you eat the same super food again and again, you have a higher chance to sensitize against it and end up with an allergy. Also, you might get an overfill of some phyto-nutrients, and become deficient in others. Not to mention that we have to worry about pollution - you don’t want to eat the same mercury-laden morsels day after day. We were made for roaming the savannah and nibble here and there, all day long. That gave us enough exercise, and rotated our groceries, depending on area and season.
Asked about healthy nutrition, I like to say (stolen from realtors who stress “location, location, location”): Vegetables, vegetables, vegetables. Today I want to add: Rotate, rotate, rotate! The point is to eat a wide variety of meats, fish and vegetables, preferably local and in season (less meat, more vegetables!).
Having emphasized variety, here are some under–used and relatively inexpensive vegetables: Onions, garlic and all cabbages (broccoli, kale, brocco rabe, broccolini, Brussels sprouts, white, red, Savoy) – eat them often. Summer and winter squash, too. Don’t forget root vegetables: Red beets, carrots, celeriac, daikon, jicama, rutabaga.
Assignment: Each time you venture to your local market/supermarket, find one new vegetable! Bring it home and serve it - any vegetable tastes good cooked (but not overcooked!) with olive oil and garlic. Read More