"I've learned that I can push forward, which was exciting for me. When you get out into the wilderness and strip [away] all of the stuff in your everyday life, you really gain a great respect for your own life, simply as it is. Needing things starts to feel like, Oh, I kind of have everything, don't I? It's pretty great." — Jessica Biel on climbing Mount Kilimanjaro earlier this year. In the Read more

Back in January, actress Jessica Biel endured a six-day journey to reach the summit of Mount Kilimanjaro for the Summit on the Summit cause. The expedition must have left a lasting impression on the actress because she now has Mount Everest in her sight. The actress told Us Magazine at the premiere of Summit on the Summit: Kilimanjaro that she "would love to trek to an Everest base camp" and that Read more

When Jessica Biel sets her mind to a goal, nothing gets in her way. Here's another reason she's the fittest celeb of 2009 — today the 27-year-old actress reached the top of Mt. Kilimanjaro, the highest peak on the African continent at 19,341 feet. She began the climb on Jan. 7, in the hopes of raising money and bringing awareness to the growing need for clean drinking water worldwide. The Read more

It looks like Jessica Biel is taking her recent roll of the earnest Salvation Army captain Sarah Brown in the musical Guys and Dolls to heart. She just volunteered to climb a mountain for charity. We all know that Jessica Biel is no stranger to working out hard. We've seen the athletic actress running sprints at the track and doing crazy-hard boot camps. Well, Jess has signed on for a big Read more

Congrats are in order for your favorite fit celeb! While Jessica Biel and Justin Timberlake have been engaged since late last year, she's been keeping her engagement bling a secret — until now. Yesterday Jessica Biel debuted her engagement ring while running errands in LA. The diamond's blindingly big size prompted our very own PopSugar to joke: is wearing that huge bauble around town its own Read more

We are pumped to share one of our fave stories from Self here on FitSugar! This just in! Mice who socialize with their "friends" in an active environment are slimmer and have flatter bellies than their lonely, lazy counterparts. So can humans learn a thing or two from sexy, skinny rodents? To find out how being more "socially active" can help you shed pounds, we spoke to Tom Holland, owner of Read more

Keep your thoughts with Jessica Biel today as she sets out on her trek up Mt. Kilimanjaro. Biel won't be alone, though — Lupe Fiasco, Emile Hirsch, and Isabel Lucas are just a few of the notables joining her on this fundraising climb for Summit on the Summit. Summit on the Summit is hoping the celebrity-filled trek will raise money, as well as bring awareness to the growing need for clean Read more

In the February issue of Vogue, cover girl Jessica Biel packs up her Subaru and heads to Whistler for a two-day interview on the slopes: "This is very much a me moment: in the snow, in the Subaru, listening to music. I feel really at peace in this environment." And though she mainly talks about her upcoming movies — A-Team and Valentine's Day — we do get a glimpse of why she's your fittest Read more