I'm here to tell you that what we sense（感觉到）, meaning what we see, smell, hear, taste and touch（触） can impact（挤入） how long we live. Now（现在） this may seem extraordinary（非凡的）, but it really isn't. Let's say that you wake up one morning and are trying to decide whether（ 是否） to go to an amusement park. One of the very first things you might do is to step（走） outside and check the weather. When you do, you see that the sky is blue, that the sun is out, you hear that the birds are chirping. You feel how warm it is on your skin.

  Based（以…作基础） on all of this information, you decide it is a perfect day for going to the park. You have used your senses to impact your decision. Now, gathering（聚集） this information does more than simply（简单地） impact（挤入） your behavior. It also can affect your emotions（情感） as well as how your body physically responds. To demonstrate（证明）, let's say you've arrived at that amusement park, and one of the very first things that you see is a roller coaster. You see the speed with which it moves, you see the twists（扭弯） and turns it takes, you see the terrified（恐惧的） look on the rider（ 追加条款）'s faces, you hear their screams（ 尖叫）.

  Even right here, right now, this sensory（ 感觉的） event may be causing you to feel anxious（焦虑的） or even excited. Feelings that are associated（交往） with butterflies in your stomach, a racing（赛马） heartbeat（心跳）, even sweating palms（手掌）. Your senses have caused your body to change. This is an example of how a very short sensory perceptive（有理解的） event can impact（挤入） you. What do you imagine a much longer sensory event might do to you? This is the question that I am interested in addressing（写名字地址）.

  What scientists like me have discovered is that prolonged sensory events can impact the lifespan of an animal. This has been shown with worms（虫）, flies, mice. When you expose（使暴露） them to pheromones（信息素（用于生化领域））, it impacts how long they live. Now, at this point, you might be asking yourself, "What does a worm, a fly, or a mouse have to do with me?" I would argue more than you realize. The genes（[遗] 基因） or genetic（遗传的） material that you find within（在……之内） a worm（虫） or within（在……之内） a fly, that is approximately（近似地） 60 to 75 percent（百分之…） similar to our own. This increases to 85 percent if we compare ourselves to a mouse.

  Furthermore（而且）, the fact that three very different animals all respond in terms of changing their lifespan when exposed（使暴露） to a specific environmental（环境的） cue, this suggests that those underlying（成为……的基础） biological（生物的） processes that drive those changes are similar.