喝出健康：咖啡是健康食品

激发意志

    研究证明，除了预防疾病，咖啡还有积极的作用影响人们的一系列行为。刊登在《当代体育医学报道》上的一个研究指出咖啡种的咖啡因可改善意志及延长耐受力和有激情的训练。少数证明咖啡因可促进短期的运动员高强度训练并有提高注意力，减轻疲劳和高度紧张，主要原因是咖啡因作用于大脑受体，改善其能量释放。

    一份来自巴西的研究认为每日饮用几杯咖啡还可提高男性生殖能力。根据《美国大众生殖医学》的科学家证实，含咖啡因的咖啡明显增强精液的“活性”，也就是增加了运动速度。自从精液的过渡活动不易受孕，高度活性增加了个体的受孕。

    其他研究显示咖啡及咖啡因都有积极影响意志能力，咖啡可增加敏感性及改善人们的神智功能。

Performance Booster
Research has also proved that, in addition to protecting against disease, coffee has a positive functional impact on an array of human activities. A study published in Current Sports Medicine Reports found that the caffeine in coffee improves performance and endurance during prolonged, exhaustive exercise. To a lesser extent, it also boosts short-term, high-intensity athletic performance, as well as enhances concentration, reduces fatigue and heightens alertness. The reason lies in caffeine’s effect on brain receptors, enabling better energy uptake.

A Brazilian study has determined that drinking a few cups of coffee a day will also increase male fertility. According to scientists at the American Society for Reproductive Medicine, the caffeine in coffee appears to increase sperm “motility,” that is, the speed at which they move. Since sperm “hyperactivity” is critical to fertilization, heightened motility increases the odds of pregnancy.

Other studies have shown that coffee and caffeine also have a positive influence on mental function. Coffee increases alertness and Improves performance on tests of mental function.

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