You train, rattle with tough workout routines and yet, you still believe that your muscles are growing at a slow pace despite the fact that you go to the gym. This may not be to the point of your commitment but a few mistakes that are limiting your success in the background. Lifting heavy weights only is not the only thing that can help an individual in building the muscle. There are factors involved in that include recuperation, method, pattern of training, diet, and even stress that count. Once any of such areas are neglected, it will then unceremoniously stop short in acquisitions, unknowingly to you. These are not so evident muscle killers but once discovered and rectified, they can contribute a lot to the strength, bulk, and the overall performance without necessarily increasing the number of hours at the work out.
Rushing Your Reps

The high rate of the repetitions reduces time under tension which is among the significant factors of muscle development. The controlled slower reps will produce increased fiber activation and the overall muscle activity will result in the improvement of the whole muscle activity.
Poor Exercise Form

Not acceptable technique will cause the load to be redistributed to secondarily circulating muscles and joints. This does not only inhibit development in the region of interest, but also brings the risk of being injured in the long run.
Training With Lack of Progressive Overload

Muscles grow when placed in a position of greater than their ability to resist. Week in week out, when you use the same weight and you do not increase to increase reps then you begin to notice slow progress.
Overtraining and Fatigue

The number of workouts does not always mean a growth. The daytime workouts and the lack of sleep can only add the level of cortisol along with the insufficient recovery and in fact, could break even muscle tissue.
Inadequate Protein Intake

The muscles are composed of repairing blocks that are contained in the form of protein. A lack of the necessary amount of intake per day means that your body cannot restore muscle fibres, which are torn during exercises very easily.
Poor Sleep Quality

Growth hormone is largely released during deep sleep. It is possible that sleeping less than seven hours per day can seriously affect the results of muscle recovery and development of strength.
Weak Mind Muscle Connection

When the lack of emphasis is used on the subject of mechanical lifting, working muscle activity is minimized. It is more effective making deliberate squeeze and control motions to effect hypertrophy.
Skipping Warm-Ups

It lessens the performance and exposes one to more risks without proper preparation to make the heavy lift. A good warming up will raise the blood flow and warm the muscles to the heavy load.
Excessive Cardio

Unlike cardio which is good to the heart, too much of cardio and more than that when not accompanied with sufficient energy can be detrimental to muscle building because it drains the body of the energy which cannot be replenished.
Poor Workout Structure

Unexpected workouts do not allow balanced development. It is necessary to organize exercises with complex exercises and then to use the isolation exercises.