Eating is controlled in the brain, of course. For more than half a century researchers have known that that basic motivated behaviors, such as eating, drinking, and sleeping, are controlled within the lateral hypothalamus, which is similar in all mammals. But have you ever wondered what part of the brain pushes you to eat or not to eat? Recent studies have shown that within the lateral hypothalamus (LH) there are distinct groups of cells, living right next door to each other, if you will. There is the Orexin cell population, the MCH, and the Vgat, to name a few. There are also the LH GABA activation cells and the LH GABA inhibition cells. The LH GABA activation cells push you to consume food and get a reward while the LH GABA inhibition cells encourage you not to consume. More tomorrow.
Friday, February 27, 2015
Current research is providing a great deal of encouragement for people who want to join live younger for longer, who want to join www.Club 122 Longevity.com. Next week we’ll talk about tips for maintaining an optimum weight. Dieting and obsessing about your weight is unhelpful in the long term. Creating a balanced Longevity Lifestyle, incorporating the key components, and maintaining it for the rest of your life typically results in your weight balancing itself as a byproduct of a healthier lifestyle. Take one tip at a time. Incorporate it into your lifestyle. Stop thinking “deprivation “and “can’t have,” and start thinking “This is fun. I’m purchasing insurance for a healthier aging process.” It’s a gift you give yourself—and the people you love. Imagine how much happier they will be when your lifestyle changes help you to avoid brain shrinkage and reduce your risk for diseases and dementia.
Thursday, February 26, 2015
Obesity is associated with the hyperactivation of the Brain Reward System for high-calorie (HC) versus low-calorie (LC) food cues, which encourages unhealthy food selection and overeating. It is triggered by seeing, smelling, thinking about, and picturing (visualizing) the HC food. The good news is that this learned behavior can be changed and the brain can rewire itself to activate when it sees healthier food choices. The bottom line? It comes down to personal choice. Do you prefer a short-term food and beverage reward or long-term healthier heart and brain? A Longevity Lifestyle recommends giving your heart and brain a break today. Overweight and obesity happens an ounce at a time—so does weight loss and prevention. The good news is that when you lose a pound, your body will dissolve and re-absorb the now unnecessary blood vessels.
Wednesday, February 25, 2015
Obesity doesn't impact just the brain, it impacts your heart, as well. Following are some examples:
- People with increased belly fat had a 30% higher risk of AAA (Abdominal Aortic Aneurysm)
- Overweight and obesity puts you at a higher risk for high blood pressure, increased blood cholesterol and triglyceride levels, and heart disease. As your BMI rises, so does your risk of Coronary Heart Disease (CHD)
- Estimates are the body contains from 60,000 to 100,000 miles of blood vessels—each pound of excess fat requires anywhere between 7 and 100 miles of new vessels. Do the math. Even taking the lowest estimate of 7 miles, 50 pounds of excess fat translates into 350 miles!
No wonder obesity and heart disease go hand in hand, your heart having to work harder to pump blood through extra miles of blood vessels
Tuesday, February 24, 2015
Studies have shown that being overweight or obese can be lethal for any brain, but it may be even more dangerous to the female brain. For example:
- Women who are obese throughout life are more likely to lose brain tissue—linked to cognitive decline in the temporal lobe, involved with language, memory, and hearing. As their BMI (Body Mass Index) increased, their risk of brain atrophy (shrinkage) also increased from 13 to 16 percent.
- Adult obese women showed increased risk of brain atrophy (shrinkage), which increases their risk for brain damage. A higher BMI was associated with shrinkage in every region of the cortex.
- The higher a woman’s weight and BMI, the worse off she was in terms of brain function
Monday, February 23, 2015
Scientists have identified an obesity epidemic that spans the globe. Obesity is bad for the brain, period. Big may be beautiful but it is not beautiful for the brain. Take a look at these study results:
- Studies of 8,000 twins showed that being overweight doubled the risk of dementia, and being obese quadrupled it. A higher BMI (Body Mass Index) was associated with shrinkage in every region of the cortex.
- Individuals with excess belly fat are more than 3 times as likely to develop memory loss and dementia later in life compared with those with a svelte waistline.
Friday, February 20, 2015
The third general category of stressors is known as Eustress, a desirable type of stress. Eustress enables you to learn and grow. When you participate in choosing, undesirable consequences to your brain and body are reduced and negative, chronic effects tend not to accumulate. Eustress can include events such as: vacation, college, marriage, childbirth, promotion, retirement, travel, learning new skills, family gatherings, holiday / anniversary events, rewarding hobbies (music, sports, and learning), et cetera. To the extent possible, include lots of Eustress in your life, while at the same time, identify and avoid or minimize Distress and Misstress, The outcomes of this can reduce the amount of stress hormones triggered by the stressors and enhance many areas of your life.