03/11/2026
Ladies, this one's for you.
Lifting heavy will not make you bulky!
Here's the biology. Men's circulating testosterone runs more than 15 times higher than women's, and that's a big part of why men put on size so much faster.
Women still respond really well to training. A meta-analysis comparing men and women on the same programmes found similar relative gains in muscle, and upper-body strength gains that were actually larger in women. But in absolute terms, the muscle you build comes slower and smaller. It shows up as shape and definition, not bulk.
What "bulky" actually takes: years of targeted training, eating in a surplus on purpose, and often some extra body fat sitting over the muscle. Not a few weeks of squats. If you feel bigger early on, it's usually water, a pump or food, and it settles.
What heavy lifting does give you:
• Shape where you want it: glutes, shoulders, arms
• Stronger bones.
• Strength for real life
• More muscle and less fat
Heavy just means challenging for you. The last two or three reps should feel hard. If you have a bone or joint condition, get a physio to help you start safely.
Tell me your favorite comeback for someone that says they're scared of getting bulky?
Comment below, and save this for next time.
Sources: Handelsman et al., Endocr Rev, 2018. Roberts et al., J Strength Cond Res, 2020. Watson et al., J Bone Miner Res, 2018.