In addition to cardio, a fitness regimen should incorporate exercises that strengthen and build the muscles. Loss of muscle mass naturally occurs with aging, but strength training is key for preserving muscle and supporting joint health, mobility and vitality into older age. [URL=https://fatnfix.com/]Bodyweight exercises[/URL] like pushups, planks, squats and lunges effectively strengthen major muscle groups. Free weights and resistance bands can be added for further progression. Lifting heavier weights with fewer repetitions builds size and strength while lighter weights with more reps tone muscles. For best results, allow at least 48 hours between strength sessions for muscles to recover and replenish energy stores. Proper hydration and protein intake also help muscles get the most benefit from strength training. Building muscle increases metabolism which aids in managing a healthy weight.