There are many reasons why some men may have a low libido. As with any health condition the underlying cause always needs to be addressed.引起性欲下降的因素有很多，正如影响身体健康的任何潜在原因，我们都必需要面对和解决的 。
这里有一些常见原因;
1.Medications - Particularly antidepressant medication and also antihypertensive medication (for men with high blood pressure) - these drugs are known to have sexual side effects including low libido.药物－特指服用抗抑郁药物和降压药（男性高血压患者）。这些药物已被正实会导至性欲低下和其它性方面的副作用。
2.Stress – The body reacts to stress by releasing adrenaline and cortisol (stress hormones). Too much stress can interfere with your body’s hormone levels, and result in a low libido. Even lack of sleep is stressful on the body and will release these hormones.压力－身体会释放肾上腺素和压力荷尔蒙来舒缓压力。但是过多的压力会干扰你身体的荷尔蒙水平，导致性欲低下。睡眠不足也会释放这些荷尔蒙缓解压力的。
3.Serious illnesses such as cancer, kidney disease and diabetes can suppress testosterone levels. The body essentially goes into survival mode and doesn’t pay much attention to non-survival functions like producing testosterone.严重疾病－如癌症，肾脏病和糖尿病都会抑制睾丸激素水平。身体基本上进入生存模式，不重视非生存功能，如制造睾丸激素。
4. Zinc deficiency – A zinc deficiency can cause a lot of problems. Loss of appetite and taste in food, low immune function, poor wound healing, hair loss and acne to name a few but low levels are also strongly linked with many aspects of men’s health including low libido and infertility. Zinc is also very important for testosterone production.缺锌－锌缺乏可以引起很多问题。如：食欲不振，味觉衰失，免疫力低，伤口愈合不良，脱发，痤疮粉刺等。对男性来说，就算是微量缺锌影响也很大，如性欲低和不孕。锌是制造睾丸激素的非常重要的物质。
5.Alcohol – In small amounts, alcohol may give you confidence and help you feel less inhibited but in greater amounts alcohol depresses the central nervous system and lowers testosterone levels - negatively affecting men’s performance. Alcohol also depletes the body of zinc.
酒精－少酌怡情，大酌伤身。少量的酒精使人舒服和放松。但是酒精过量就会使中枢神经系统不适和降低睾丸激素水平 ，影响男性的表现。酒精还会损耗体内的锌。
So what can help?
如何改善？
Managing stress levels and keeping as healthy as possible with a good diet, exercise and healthy lifestyle is important. Increasing your intake in foods high in zinc will also help.管理情绪与压力，健康饮食，多运动，健康生活方式是非常重要的。增加摄入含高锌食物也是有帮助的。
Oysters contain more zinc than any other food.Traditionally, oysters are an aphrodisiac – known to help boost sexual performance and libido – (thought to be because of their high zinc content). Zinc deficiency has also been closely linked to impotence, erectile dysfunction as well as infertility. Therefore, it makes sense to increase your oyster and zinc intake especially if you are thinking of having a baby.牡蛎在传统上的运用是催情剂 。众所周知，它可以帮助提高性功能和性欲 （因为它的高锌含量）。缺锌也会引起阳痿，勃起功能障碍和不育症。因此，我们需要增加食用牡蛎和锌摄入量，特别是如果您正在计划生小孩。
Good Health Oyster Plus contains New Zealand freeze dried oyster with naturally occurring vitamins & minerals. Added zinc boosts the natural amounts already present in oyster which helps with male reproductive, vitality and immune support.好健康特级牡蛎精胶囊来自天然纯净新西兰海水中的牡蛎冷干提炼，内含维生素和矿物质。还添加更多的锌帮助男性性能力，活力和免疫力。
