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.
Benefits of Aerobic Exercise. It is difficult to overstate the benefits of aerobic exercise. It not only improves overall health and quality of life, but may also extend your life. Aerobic exercise burns fat, improves mood, strengthens the heart and lungs and reduces your risk of diabetes.