Ringing in the New Year with a pledge to ring the changes is far from a modern phenomenon. The ancient Romans began each year by making promises to lead a better life to Janus, the God after whom January is named. The Babylonians, too, would vow to their gods at the turn of the year to pay back their debts. And the theme of self-improvement carries across different cultures and religions – along with fasting and atonement for sins. In my experience one resolution is enough. Pick the most important one. Mine is swimming laps at 9 a.m. every single day unless it’s raining with lightning. If I do this one thing, exercising, everything else seems to fall into place!