PremiumMaggie PenmanWashington Post·4 Sep, 2026 10:00 PM7 mins to readMyra Sack and her daughter, Havi, in January 2020. Photo / Myra Sack via The Washington PostScientists are beginning to study the ways that exercise can help bereaved people navigate loss.Myra Sack has always been an athlete. She was picked first for neighbourhood basketball games when she was growing up outside the US city of Philadelphia.

Sack, 38, went on regular jogs throughout most of