Every new year brings a surge of enthusiasm for fitness goals. People flock to gyms and sign up for classes with high hopes of transforming their habits. Yet within weeks, daily obligations take over ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...

Free online exercise classes are one of the best ways to get au fait with fitness, without forking out for a gym membership. This is particularly good news right now, when bills (energy, water, ...