BEST HAMMER CURL FORM EXPLAINED 👇 1️⃣ Arms hanging / loose → More shoulder & biceps involvement → ❌ Least isolation 2️⃣ Both dumbbells up together → Better tension but elbows drift forward → ⚠️ Still biceps-dominant 3️⃣ Single-arm, elbow tight, neutral grip → 🔥 MAX brachialis & forearm activation → No swing, constant tension → ✅ BEST isolation Pro tip: Curl slightly across the body slow eccentric = elite brachialis growth 💪 Save & give this a try on your next biceps workout 🔥 Follow @youssef