If you don't stay hydrated, your physical performance can suffer. Dehydration can have anoticeable effect if you lose as li is little as 2% of your body's w water content. However, it isn't uncommonfor athletes to lose __31__ 6-10% of their water weight via sweat. This can lead to altered bodytemperature control, reduced motivation, and increased fatigue. It can also make exercise feel muchfrom happening, and it may even reduce the oxidativemore difficult,_32__ physically and mentally. Optimal hydration has been shown to prevent thisthat oceurs during high intensityexercise. This isn't surprising when you consider that muscle is about 80% water. If you exerciseintensely and tend to sweat, __ 33_ hydrated can help you perform at your absolute best.      Furthermo ore, as humans' brains are s strongly influ uenced by__34__ hydration status, evenyaspects of brain mild dehydration, such as the loss of 1-3% of body weight, can impair manyfunction. In a study in young women, researchers found that fluid loss of 1.4% after exerciseimpaired both mood and concentration. It also increased the frequency of headaches. Members ofthis same research team conduct a similar study in young men. They found that fluid loss of 1.6% was_35_ to working memory and increased feelings of anxiety and fatigue.
【題組】31.
(A) as little as
(B) as less as
(C) as more as
(D) as much as