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Testosterone Levels Varied With Environmental Changes Among Bangladeshi Men

Men's testosterone levels are largely determined by their environment during childhood, a study has found.

The researchers from Durham University suggest that men who grow up in more challenging conditions where there are lots of infectious diseases, for example, are likely to have lower testosterone levels in later life than those who spend their childhood in healthier environments.

The study, published in the journal Nature Ecology and Evolution, challenges the theory that testosterone levels are controlled by genetics or race.

Skin Conditions Are Impacted By Skin Color

According to a study, the researcher examines skin conditions are significantly impacted by your skin color. Ethnicity and skin tone can make a big difference in terms of diagnosis and treatment options with a number of different skin conditions.

The amount of melanin the pigment that gives skin its color can greatly influence a person's risk of and reaction to many different skin conditions. For example, a fair-skinned person with a low level of melanin has a far higher risk of sunburn than someone with a melanin-rich dark complexion.

Comparison Between ED Use Of CTA And SE Head-To-Head

According to a study, the researcher showed sought to compare early emergency department (ED) use of coronary computed tomography angiography (CTA) and stress echocardiography (SE) head-to-head. For patients presenting to the emergency department with chest pain, a smaller proportion is hospitalized after undergoing stress echocardiography (SE) versus coronary computed tomography angiography (CCTA). The study was published online in JACC: Cardiovascular Imaging.

Zika: California Aedes mosquitoes Involved in the Spread

Over the last five years, Zika virus has emerged as a significant global human health threat following outbreaks in South and Central America. Now, researchers have shown that invasive mosquitoes in California — where cases of Zika in travelers have been a regular occurrence in recent years — are capable of transmitting Zika.