Kirsten Ferguson taught me "runner’s math," surviving side cramps and running form hacks. Plus, she shares a 20-minute speed ...

Commissions do not affect our editors' opinions or evaluations. Peloton offers one of the most popular at-home exercise programs. Members can choose between live or on-demand workout classes ...

Her work has previously appeared in POPSUGAR, Us Weekly and Entertainment Weekly. Peloton's newest strength instructor's first class is launching on Wednesday, the at-home fitness company ...