A) influenced E) psychological I) feeling M) mentallyB) pulling F) foundation J) relationships N) rebuildC) adequate G) lowered K) pushing O) appropriateD) strain H) function L) resetThose aching knees, stiff shoulder, and pain in your lower back are sending you a clear message: Doing the same workout too frequently can lead to overuse injury, according to Mayo Clinic. You're likely 111 your body too hard and not giving it enough time to recover, which can112 the muscles and joints. Don't see rest days as being lazy, but as giving your body the chance to replenish (补充能量) and113 itself.It can be hard to tell how much exercise is too much, but one of major signs is a decrease in performance. Without 114 time for your body to recover, hormone levels change, which can cause a breakdown of muscle. “This can lead to weakness of muscle 115decline in physical performance, and even increased risk of injuries,"says personal trainer Jessica Matthews, MS. If you'renot116 quite like yourself-— you have increased anxiety, decreased concentration, increased irritability, and 117self-esteem—it's time to re-evaluate your exercise regimen. “Although physical activity can and should be fun and enjoyable, over-exercising can lead to 118 burnout, causing a motivation problem and dissatisfaction with exercise,"says Matthews.Working out shouldn't get in the way of your 119 or your social life, and if you skip quality time with people you care about to hit the gym, it might be a time to step back and find the 120 balance.