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.
Both yoga and aerobic exercise offer significant health benefits including improved muscle tone, decreased body fat and improved mental outlook. When compared over four key fitness categories, aerobic exercise outperforms yoga. However, each form of exercise has its strengths and weaknesses and should be selected according to your fitness goals.