Caitlin Hendler, M.S.Most commonly known as the “Sunshine Vitamin,” the main source of this fat-soluble vitamin is exposure to sunlight because of few food sources. The benefits of vitamin D go much further than merely a bronze tan – studies show that it assists in growth, remodeling, regulation of calcium and phosphate concentrations for ideal bone health and physical performance. Vitamin D is a vital nutrient for optimal health in the general population but even more signific...

Vincent Chen, B.S When talking about resistance exercise, some people believe that women respond less than men in terms of muscle mass and strength gain, while others think that it may make women look bulky. Many women therefore tend to avoid doing resistance exercise. However, the benefits outweigh the possible drawback of bulkier appearance. Physical inactivity-induced muscle loss may reduce an individual's ability to resist impact and lower the basal metabolic rate (BMR) to an unheal...

Rachel Botchlett, M.S.Skeletal muscle is a highly specialized tissue that is responsible for voluntary motion and plays a significant role in glucose metabolism and maintaining postural support. The loss of skeletal muscle, defined as atrophy, is characterized by a marked reduction in muscle protein synthesis coupled with an increase in protein degradation and can lead to a loss of contractile force. Muscular atrophy can be caused by several health issues, including starvation, aging, and muscul...

Nina Laidlaw Rumler, B.A.This is Amuhrica, right? We power-through, man-up, and tough it out. Well, that’s not always a good strategy. We hear constantly about the benefits of physical activity but often overlook the drawbacks. While physical activity has positive effects in prevention or reduction of a number of illnesses (diabetes, hypertension, cardiovascular disease, osteoporosis, some types of cancer, etc.), there is also a strong association with injury. Some, such as spinal cord inj...

Majid Koozehchian, M.S. Childhood and adolescence are critical periods in the formation of cardiovascular risk factors. Many cardiovascular diseases are related to such risk factors as high levels of total cholesterol, low-density lipoprotein (LDL), and triglycerides (TG), as well as low levels of high-density lipoprotein (HDL). The causes of cardiovascular risk factors are manifold, involving environment, lifestyle, and genetics. In adolescents, higher levels of exercise training are inver...

Andrew Jagim, Ph.D, CSCS  Juice, roids, gym candy, pumpers and stackers are all common nicknames for substances more technically referred to as anabolic-androgenic steroids.  Anabolic steroids are defined as any type of exogenous drug that mimics the effects of testosterone in the body.  Most people take them with the goal of increasing muscle mass, improving performance or enhancing physical appearance.  It is estimated that as many as 3 million Americans have used non-medic...

Vincent C.W. Chen, B.S.Metabolic syndrome, a condition including insulin resistance (causing diabetes), obesity, hyperlipidemia (high blood lipids), hypertension, and heart disease, is mainly due to high fat diets and lack of physical activity. It has become a major health concern in modern society. Recently, a substance called PPAR-delta has been identified as a potential therapeutic remedy for the treatment of metabolic syndrome. PPAR-delta is the most abundant isoform among the three PPARs (p...