Author
Cole Brennan
Background and how he works
Cole has lifted since 2013 and has coached in-person and remotely since 2018, mostly people training at home or in budget commercial gyms. He trains in a single-car garage with a rack, a barbell and a pair of adjustable dumbbells, so the constraints on this site are the constraints he lives with.
His research method is deliberately narrow: position stands and guidelines from named bodies first, peer-reviewed trials second, and practitioner sources only when clearly labelled as opinion. He does not cite other blogs. Where the evidence does not support a confident answer, the article says so instead of guessing.
He holds no commercial relationship with any supplement brand, equipment manufacturer or gym chain, and Iron Leaks carries no affiliate links.
Published posts
-
September 7, 2026
How To Get 200g of Protein a Day Without Protein Powder
A worked day of eating that totals 200 grams of protein from whole foods, built on USDA FoodData Central values, with the protein-per-calorie table…
-
September 7, 2026
How Many Calories To Add for a Lean Bulk per Week
A weekly adjustment rule for a lean bulk: the starting surplus, the gain rate to target, the three-week check, and what to change when…
-
September 7, 2026
Gym Etiquette Rules for Beginners Nobody Tells You
Every etiquette listicle gives you the rule and none give you the reason. Here is the reason behind each one, so you can handle…
-
September 7, 2026
How To Lift Weights on 5 Hours of Sleep
Sleep-science posts tell you to sleep more. This one tells you what to change in tonight's session: what degrades, what to cut, and what…
-
September 7, 2026
How Much Muscle Can a 40-Year-Old Gain in 6 Months?
What six-month resistance training trials actually measured, why the second three months add far less than the first, and the range worth planning around…
-
September 7, 2026
Can You Build Muscle and Lose Fat at the Same Time After 40?
Body recomposition is real, but the conditions decide it. What five controlled trials show about who gains muscle while losing fat, and who should…
-
September 7, 2026
Is It OK To Lift Heavy Weights After 40?
Real load numbers instead of opinion: what percentage of your max counts as heavy after 40, and why the rate you add weight matters…
-
September 7, 2026
How Many Rest Days Does a 50-Year-Old Need Between Workouts?
Rest is measured per muscle group, not in days off per week. Two weekly layouts that give every muscle 48 hours, and what actually…
-
September 7, 2026
What To Do When Your Dumbbells Are Too Light To Build Muscle
Capped dumbbell load is not the limiter most lifters think. The set counts, rep ranges and exercise swaps that keep light weights growing muscle.
-
September 7, 2026
How To Squat Without a Squat Rack at Home
No rack means front-loaded and single-leg squatting. What each variation loads, what it gives up, and the point where a rack is genuinely the…