Humans can make new brain cells into their 90’s: Study
The human brain continues to make neurons even after the age of 90, Spanish scientists have discovered, and the production of these brain cells is declining in people with Alzheimer’s. Neuropathologist María Llorens-Martín and her colleagues at the Autonomous University of Madrid believe that their…
Stress of Space Travel Can Reactivate Dormant Viruses in Astronauts
Staying in space causes significant stress and affects health. However, these bodily changes can also benefit illegal travelers: dormant viruses, hidden in the cells of our body, jump at the chance to reactivate and spread. Becoming an astronaut is a career choice that exposes you to…
Melting glaciers on Mount Everest reveal more and more corpses
The accelerated melting of Mount Everest Glaciers has unexpected and macabre effects. In recent years, with the rapid thinning of the ice, one sees appearing gradually on the highest summit of the world the corpses of the mountaineers who dead on the world’s highest mountain. More…
Less deep sleep, more risk of Alzheimer’s
Higher levels of the brain protein tau in older people may indicate a greater sign of Alzheimer’s disease and has been linked to brain damage and cognitive decline. Sleeping badly is a hallmark of Alzheimer’s disease. People with the pathology tend to wake up tired…
Evidence of Changing Seasons, Rain on Titan’s North Pole
NASA’s Cassini spacecraft observations provide tangible evidence of precipitation at the North Pole of Titan, Saturn’s largest moon. According to Rajani Dhingra and his colleagues at the University of Idaho, this precipitation would be an indication of the beginning of the summer season in the…