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.
1 In general, anything that is good for your heart is great for your brain. 2  Aerobic exercise is great for body and brain: not only does it improve brain function, but it also acts as a first aid kit on damaged brain cells.
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.