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.
aerobic exercise is a type of physical activity that uses your large muscle groups is rhythmic in nature and can be sustained for at least 10 minutes walking jogging indoor cycling and aerobic dancing are all examples of aerobic exercise that strengthens your heart and lungs and keeps you healthyf you re performing this last activity then you re engaging in aerobic exercise aerobic exercise is any physical activity that makes you sweat causes you to breathe harder and gets your heart beating faster than at rest