In fluid dynamics, the wave height of a surface wave is the difference between the elevations of a crest and a neighbouring trough. Significant wave height H 1/3, or H s or H sig, in the time domain, is defined as the average height of the one-third part of the measured wavesâwhich are N in numberâhaving the largest wave heights:
Hair loss in men and hormones are closely related. The relationship between testosterone and hair loss is due to dihydrotestosterone (DHT), a derivative of testosterone. DHT can cause hair follicles to regress and die, resulting in premature balding. In addition to feeling severe fatigue, men with low testosterone often lose their drive and initiative. Despite getting plenty of sleep, men suffering from low testosterone often find it harder to get motivated to conquer daily activities. In some cases, low testosterone can cause insomnia or other sleep disturbances.
About 6 percent of men, however, have clinically low testosterone levels that cause troubling symptoms such as low sex drive, erectile dysfunction, sleep difficulties, depressed mood, low energy and low muscle tone. Some may develop osteoporosis or fractures from having too little of the sex hormone.