The water exercises in these trials included aerobics, Zumba dance, yoga and jogging, six to 12 weeks. People exercised mostly two to three times a week, with most sessions lasting an hour.

In a Los Angeles auction, Mark Zuckerberg’s Facebook hoodie was sold for $15,875, and Steve Jobs’s bow tie fetched $35,750. The hoodie features Facebook’s 2010 mission statement and was ...