[WSJ:PAID] Massaging Balls, Plunge Pools, Memory Foam Dog Beds: Who Needs All This 'Recovery' Gear?

www.wsj.com Massaging Balls, Plunge Pools, Memory Foam Dog Beds: Who Needs All This ‘Recovery’ Gear?

Trendy new tools pledge to soothe tired, worn muscles. We asked experts for a reality check.