Polar bears are in danger of extinction in the future if globalwarming continues, as their habitat, Arctic sea ice, is shrinkingevery year, making it difficult for bears to have enough food tolast through the lengthening summers.With a population of nearly 25,000, the polar bear is not in dangerof extinction now.
Aerobic exercise stimulates the growth of new neurons, also known as neurogenesis through the release of brain-derived neurotopic factors. Endurance exercises release Irisin, a hormone linked to improved cognitive function, fat loss and overall health.
The results show aerobic exercises appear to benefit cholesterol the most, by lowering LDL by 5 to 10% and raising HDL cholesterol by 3 to 6%. Water exercises, such as swimming, water walking, and participating in water games, can also produce similar results in your cholesterol profile as aerobic exercise.