To see under starlight and moonlight, the retina of the eye changes both the software and hardware of its light-sensing cells to create a kind of night vision.
Eyes have a natural version of night vision
As we go about our daily lives, we are exposed to many different chemicals that could have negative effects on our hormones. These hormonal changes have been linked to several adverse health outcomes such as breast cancer and cardiovascular disease.
Mixed chemicals in beauty products may harm women's hormones
Health & Wellness Tourism
By Zohreh Qanadi
Study Visit to ‘Amazing Thailand’ – a paradise for longevity
By developing a novel decoding technology, a team of engineers and physicians at the University of Southern California (USC) and UC San Francisco have discovered how mood variations can be decoded from neural signals in the human brain--a process that has not been demonstrated to date.
Researchers decode mood from human brain signals
The number of years a woman can expect to live in decent health has stalled for the first time due to the rising prevalence of dementia, according to a government report.
Women's healthy life expectancy stalled thanks to Alzheimer's disease
Switching to a healthier diet can reduce an individual's water footprint by as much as 55 percent.
How to eat well, save the planet
Macrophages are immune cells that are supposed to protect the body from infection by viruses and bacteria. Yet Zika virus preferentially infects these cells.
Zika virus strips immune cells of their identity
There is no evidence that medicines for persistent coughs have any benefit, and one in seven patients actually experience negative side effects, a study found.
No evidence cough medicines work with one in seven patients experiencing negative side effects
When Esperance Nzavaki heard she was cured of Ebola after three weeks of cutting-edge care at a medical center in eastern Democratic Republic of Congo, she raised her arms to the sky with joy and praised the Lord.
Ebola fight has new science but faces old hurdles in restive Congo
Dr. Leslie Norins is willing to hand over $1 million of his own money to anyone who can clarify something: Is Alzheimer's disease, the most common form of dementia worldwide, caused by a germ?
Infectious theory of Alzheimer's disease draws fresh interest

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