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.
During aerobic exercise, which is more moderate in intensity and lasts two minutes or longer, the body burns mostly fat with moderate use of carbohydrate and protein energy. Intake Recommendations Eating enough food to maintain your daily metabolic functions is critical for health.