ARIES

Your individualism and strong desire to champion underdog causes means charity events are the perfect Aries workout. Do a 5K walk, a half marathon or an organized bike ride to challenge yourself and enhance your enthusiasm for keeping fit. Since you dread monotony, opt for different routes on each training run. You're a born leader, Ram — by becoming squad captain, you can use your outspoken nature to motivate others too. Don't let migraines or sinus infections sideline you; seek treatment right away. Lucky race days: April 1, June 9, September 1.

Days to avoid overtaxing yourself:

March 9, April 12, May 3, June 30, September 19, December 13

Days to crank up the workout heat:

April 25, July 4–5, August 15, October 10–12, December 6