Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Do you want a strong ...

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Confession: Despite my lengthy career as a fitness journalist and being well-versed in the health benefits of a strong core, I have not been consistent with training my abs for a while. (Hi, holidays ...

A 15 minute obliques side abs workout designed for a stronger core and toned abs, using only a yoga mat and a block at home. The routine focuses on the side abdominals and deep obliques with hip dips, ...

A strong core helps with posture, balance and stability, and can prevent and reduce back pain. To effectively strengthen your core you need to work the low back, glutes, pelvic floor and the ...

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Core exercises can improve strength, posture, and overall health. Although it can be harder for females to attain visible ab muscles, performing core exercises regularly is very beneficial. Sex and ...

View post: This Simple 10-Minute Stretching Circuit Undoes the Damage of Sitting at a Desk All Day for Men Over 40 This Simple 10-Minute Stretching Circuit Undoes the Damage of Sitting at a Desk All ...

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Jakob Roze, CSCS, is a health writer and high-end personal trainer. He is the founder and CEO of RozeFit, a high-end concierge personal training practice and online blog. Katrina Carter, DPT, FNS, is ...