Flu-like Illness. One of the earliest HIV symptoms in men is a severe 'flu-like' illness, known as the 'seroconversion illness.'. Seroconversion is the point in time where a person's blood is converted from being HIV negative to HIV positive, by the production of antibodies.
Erosion causes the surface of mountains to be younger than the rocks that form the mountains themselves. Glacial processes produce characteristic landforms, such as pyramidal peaks, knife-edge arÃªtes, and bowl-shaped cirques that can contain lakes.
If youâre planning to go to a mountain resort or other high-altitude destination, thereâs a chance that altitude sickness could cloud your trip. Also called acute mountain sickness (AMS), it affects at least 25 percent of travelers to the Colorado Rockies, for example, and 50 percent of people who go to Cusco in Peru or trek in the Himalayas. Itâs hard to predict if you will get sick, but the higher the altitude and the faster you ascend, the greater your risk.