When we think about depression, lack of motivation, or difficulty focusing and concentrating, the well-known brain chemical serotonin often comes to mind. While it’s true that serotonin deficiency is a problem for many people with depression and other mental health issues, researchers have known for years that other neurotransmitters such
Tag: physical stress
You lost a loved one, suffered through a divorce, or sent your eldest to college. Now, your heart is aching, your blood pressure is rising, and you’re feeling breathless. If you’re fit and healthy with no history of heart disease, you’re probably suffering from broken heart syndrome, a condition that
More than half of all women experience urinary incontinence at some point—and many are suffering needlessly. Whether they are embarrassed or simply accept the condition as a normal part of life, an estimated 55 percent of those women don’t even mention it to their physicians.
The Women’s Preventive Services Initiative (WPSI),
Stress Response Varies According to Type of Smile
A study of nonverbal feedback published in Scientific Reports found that smiles may reduce or increase physical stress depending upon how they are perceived. The researchers showed that smiles with different social functions have different effects on the hypothalamic-pituitary-adrenal (HPA) axis activity. The
At any given time, trillions of bacteria live in your body, many of which reside in the large intestine. This colonic community of bacteria, known as the gut microbiota, plays a key role in immune function, digestion, weight management, and blood-sugar control, among other functions. Some of these microorganisms cause
Step by step, slow walking warms you up for faster walking. The physical stress of exercise—and sometimes even just the anticipation of it—prompts the brain to cue your adrenal gland to secrete the hormone adrenaline, a.k.a. epinephrine. Traveling through the bloodstream, this short-term stimulant signals your heart to beat
Walking is the great democrat of exercise. It requires no special venue, no fancy equipment. Accessible to all, it stretches the limbs of both commoners and kings. Thomas Jefferson waxed sage about the virtues of hoofing it. “Walking is the best possible exercise,” he wrote to a friend in 1785.
You may know cardiomyopathy as a type of heart disease, but it’s actually more than that. Cardiomyopathy is really a group of diseases affecting the heart muscle. There are several kinds of cardiomyopathies, and each one has its own set of possible causes and outcomes.
One of the common characteristics of
Science shows there’s a genetic component to depression that makes people more susceptible to the disorder. So is depression hereditary?
Just because you carry the genes doesn’t mean you’ll develop the disease. Your genetic makeup helps determine how likely you are to develop depression if other factors related to the
There is no shortage of products and procedures that promise youth and longevity. Some can be helpful, while others are little more than snake oil. What you do and don’t do on a day-to-day basis can often be the defining factors of a life well lived. Dedicated actions, such as