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Irisin is a new hormone found to play a role in energy metabolism.  Irisin levels are predictive of telomere length i.e. the higher the irisin levels, the longer the telomere lengths.

Study finds interval training positive for both men and women.  The best ratio, according to this study, is 2:1 work to rest.

mice study suggests that increased linoleic acid increases lipid oxidation and increases metabolic rate and muscle performance.  The point is that some fat is good.  Too much Linoleic acid is pro-inflammatory which would promote adiposity.  The key is balance.

Plasma and salivary cortisol and Testosterone levels correlated in small study that looked at post-training hormones changes in athletes.  Cortisol and Testosterone peaked in all experimental groups. 

This study found that free weights induced a greater increase in Testosterone, GH, and cortisol, than machine.  This study only looked at serum levels.

Testosterone therapy shown to be beneficial as a part of rehabilitation program in men with CHF and low T.

Increased strength training associated with increased Total Testosterone and 3-alpha androstane idol  levels in trained athletes.  This was not found in free Testosterone levels.

Increased survival seen in those with breast cancer that walk 3 hours weekly.  In colorectal cancer, a decrease in mortality was seen in walking 6 hours weekly.

Increased risk of cardiovascular events and all-cause mortality is highest in the least active population in those with coronary heart disease.  However, those with the highest, strenuous physical activity were also at increased risk--though less than the inactive group.

Higher muscle mass associated with lower mortality in older adults.  so many focus on cardio and forget about resistance training.

Observational study finds BMI increase of 0.375 in both men and women per year.  The waist circumference also increased by 0.37% per year in women compared to 0.27% in men.  There was a significant reduction in physical activity over the same time period.  In women, the reporting of physical inactivity increased to 52% FROM 19% compared to 44% FROM 11% in men.  The authors found no association with change in calories.  However, an assessment in quality of calories would have likely shown a glaring difference.  Clear causation can not be concluded due to the fact that the study was observational.

Crossover study finds T3 versus T4 results in more weight loss, improved lipid management and increased SHBG without any adverse cardiovascular effects.   The T3 was dosed 3 x daily due to its short half life compared to T4.

Mortality increased by sedentary lifestyle.  The risk is on par with that of BMI and waist circumference.

It is a myth that lower body workouts can be performed with the health club's machines. If you really want to reshape or resize the lower body part then you need the gender appropriate and well-framed exercise program that can be done from home.

study finds soccer training is associated with increased oxidative stress as measured by TBARS, SOD, superoxide anion and other oxidative stress load biomarkers.  Astaxanthin was associated with less oxidative stress.

Animal study finds that DHA increases BDNF increasing neuroplasticity.

Ultra endurance athletic events associated with significant increase in systemic inflammation due to damaged gut.

Could Ginger be aid in recovery?  Results are mixed.  Study finds 4 g of ginger improves strength in muscle recovery, yet no change in muscle biomarkers.

validity of saliva cortisol testing in athetes

saliva testing for cortisol, DHEA, androstenedione