Dr. Robert Alan Gelfand M.D.

Hyperthyroidism is a health condition in which the body’s metabolism becomes slow, leading to the feeling of fatigue. This is caused by an abnormally low amount of thyroid hormone in the blood. This deficiency is caused by an impaired functioning of the thyroid gland. People may develop this...

Diabetes is one of the most widespread metabolic disorders in the world. According to key facts listed by the World Health Organization, the number of people with diabetes has risen dramatically from 108 million in 1980 to 422 million in 2014 with prevalence in patients 18 years old and above...

A new study has show that men who do not have children are more likely to die from a heart complication or condition, when compared to men who did have children. In this study, the researchers followed more than 135,000 older men for a decade to observe the impact of fatherhood on health. Study...

Testosterone therapy may help to improve a man's energy level, sex drive, and mood, if he has low levels of testosterone in his body. However, testosterone replacement therapy is only recommended for those who have the symptoms of low levels of this hormone.Symptoms of low testosterone levelsThe...

What are ketones?Everybody has ketones. The body produces ketones when there is not enough insulin that will convert sugar into energy. Ketones are chemicals produced by the liver from fatty acids. The liver then sends ketones into the bloodstream, so the tissues and muscles can utilize them as...

Hypothyroidism is a very common condition in which the thyroid glands are unable to produce adequate hormones to maintain the metabolic level of the body. A low amount of thyroid hormones in the blood also affects the energy production in cells. This leads to fatigue and exhaustion, even with...