Testosterone

-
What Is Testosterone? Testosterone may be the most notorious of hormones. It conjures up thoughts of muscles and masculinity. In fact, testosterone does fuel sex drive and muscle mass, but it also regulates mood and bone strength. When a man's level falls below normal, a doctor may prescribe shots, gels, or patches. But there is some debate over who needs treatment.

Comments

Post a Comment

Nice article

Popular posts from this blog

Asthma

-
Image
What is asthma? Asthma is an episodic constriction of the bronchial tubes. It is a common disorder of both children and adults, often regarded as mysterious and frustrating to treat. What are the symptoms of  asthma ? The condition is marked by wheezing (especially on expiration), coughing, and difficulty in breathing. Asthma can appear and disappear without warning. If an attack is severe enough, it can kill. What are the causes of  asthma ? The immediate cause of an asthmatic attack is tightening of the muscular bands that regulate the size of the bronchial tubes. These muscles are controlled by nerves, but what triggers the nerves to make airways constrict inappropriately is not clear. The triggers for asthma can be primarily allergic or primarily emotional or induced by exercise or respiratory infection, or it can occur with no obvious causes. It is now being considered an inflammatory disorder. The "hygiene hypothesis" is a proposed explanation for why allergie...
Read more

What is Dopamine?

-
Image
By Dr Ananya Mandal, MD Dopamine is a neurotransmitter. It is a chemical messenger that helps in the transmission of signals in the  brain  and other vital areas. Dopamine is found in humans as well as animals, including both vertebrates and invertebrates. Dopamine history Dopamine was first synthesized in 1910 by George Barger and James Ewens at Wellcome Laboratories in London, England. In 1958, Arvid Carlsson and Nils-Åke Hillarp, at the Laboratory for Chemical Pharmacology of the National Heart Institute of Sweden, discovered the function of dopamine as a neurotransmitter. Arvid Carlsson was awarded the 2000 Nobel Prize in Physiology or Medicine for showing that dopamine is not just a precursor of norepinephrine and  epinephrine  but a neurotransmitter, as well. Dopamine production Dopamine is produced in several areas of the brain, including the substantia nigra and the ventral tegmental area. It is a neurohormone that is released by the ...
Read more

Clinical Trials

-
Clinical trials are research studies that test how well new medical approaches work in people. Each study answers scientific questions and tries to find better ways to prevent, screen for, diagnose or treat a disease. Clinical trials may also compare a new treatment to a treatment that is already available. Every clinical trial has a protocol, or action plan, for conducting the trial. The plan describes what will be done in the study, how it will be conducted, and why each part of the study is necessary. Each study has its own rules about who can participate. Some studies need volunteers with a certain disease. Some need healthy people. Others want just men or just women. In the United States, an independent committee of physicians, statisticians and members of the community must approve and monitor the protocol. They make sure that the risks are small and are worth the potential benefits. NIH: National Institutes of Health
Read more