Make sure you are getting enough protein, but that it is also coming from good sources. You will ideally consume 1.5g of protein for every kilo of body mass. Fish and lean meats are great sources of healthy protein, although limited servings of red meat can mean creatine, which helps. Protein supplements can be used to get to your target number, but should never replace food.
In order to effectively build muscle, eating often is required. However, if you have a busy life, it can be difficult to find time to eat. Meal replacements are a great way to fulfill the need to eat if you do not have the time to prepare real meals. They provide a sufficient amount of protein and nutrients, and can also help you avoid eating unhealthy fast food alternatives.
Pressing through the heels is vital when it comes to performing lunges, deadlifts, and squats. Doing this keeps your weight over the hips, which lets you press additional weight without increasing your chance of injuring your knees. If you discover that your weight is mostly on the balls of the feet, then you should readjust your form.