David Akopian | Fitness on Instagram: "7 Gain Killers 👇 Save this — these are the post-workout mistakes that silently kill results. 1️⃣ Protein with no carbs Protein alone isn’t enough. Carbs + protein post-workout spike muscle repair far more than protein by itself. That shake? Add fruit or oats. 2️⃣ Cold showers right after training Feels good — bad timing. Cold exposure too soon can blunt recovery and muscle growth. 👉 Wait 4–6 hours, or save cold water for pre-workout. 3️⃣ Sitting and scrol