Modification of an organism or its parts that makes it more fit for existence under the conditions of its environment: a heritable physical or behavioral trait that serves a specific function and improves an organism’s fitness or survival.merriam-webster The adaption chapter in school text book ...
Meet Polar Ignite 3, a stylish fitness and wellness watch with an all-new curved hi-res AMOLED touchscreen, and fully automated holistic sleep and daily activity tracking.
We all get stressed at times and our overall stress load affects recovery, training and fitness results. If you sleep poorly because you can’t shake the anxiety about the massive workload waiting for you at the office the next day, it’s safe to say your body’s overnight recovery ...