Jennifer Garner and Reese Witherspoon protect their lustrous locks from sun and color damage with the Alterna Caviar Anti-Aging Moisture Shampoo ($30) and Conditioner ($32), an ultra-rich combination that protects hair from UVA/UVB rays. The caviar extract delivers omega-3 fatty acids thought to enrich the hair and scalp. Plus, the products are sulfate and paraben-free, and biodegradable!

Cardio and weight-training sessions five times a week.

"After you turn 25, women start to lose muscle mass and your metabolism lowers," explains Arquette's trainer, Michelle Lovitt.

"You basically offset age with exercise."

The 44-year-old, who has daughter Coco, 4, retains her muscle mass by running, hiking and doing total-body exercises, including squats with a punch.

"She just wants to be a fit and healthy mom."

If the couple that exercises together stays together, then Reese Witherspoon and Jake Gyllenhaal's relationship is in good shape. The pair who've attended yoga classes together recently went running in Santa Monica, Calif. They've got the right idea: Meeting your goals with a partner is a great way to stay on track and try new things!

Legumes look like peas or beans, but lentils are actually seeds. They make a great substitute for meat, because they're high in fiber and protein and low in fat. Lentils also have plenty of folate and potassium. Find dried or canned lentils at grocery stores and specialty markets. Rinse dry lentils and boil for 15 to 30 minutes, whole or split in half, with or without the skin. Include in soups, stews and salads. Or, simply add turmeric, ginger or other seasonings. Delish!

David Beckham has always kept in great shape.  He has been in L.A. less than two years.The British soccer star confirms that he does hope to move to Italy – for just a "few months!" – later this winter. Now that his Major League Soccer season has ended in the U.S., he's hoping to spend time playing with AC Milan.

"The MLS season doesn't run as long as the European season and having played most of my career in Europe, my body has been trained ... not to have that amount of time off," he wrote on his blog.

"It also gives me the chance to keep my fitness up and carry that on for when I come back to the Galaxy for the new MLS season [next March]."

Pilates guru Brooke Siler has worked with celeb clients including Madonna, Liv Tyler and Kirsten Dunst. Now the trainer is sharing her secrets with her Pilates Weight Loss for Beginners DVD ($14.98), a 50-minute workout focused on a series of standing and floor exercises to help sculpt your body (especially your core!) and get your heart pumping.