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1All living organisms on Earth are exposed to a 24-hour day-night cycle. This cycle is the reason why people rest at
2night and are active during the day. Consequently, all human body functions also follow this daily rhythm, and the
3timing of behaviors like exercise or food intake can significantly influence your health. For example, eating at night
4can lead to weight gain over time because food intake at night leads to increased fat storage. Many drug targets in the
5body follow a 24-hour cycle, too. This means that the specific proteins a drug is designed to modify can react
6differently to the medicine over the course of a 24-hour time period. Because how the body responds to a drug can differ
7depending on the time it is taken, it logically follows that taking medicines at specific times could help increase
8their effectiveness and reduce unwanted side effects. When doctors prescribe medicine for people, they rarely consider
9the best time to take it. There are two main reasons for that oversight. First, many physicians are not aware that some
10drugs work better during a specific time of the day. And second, most drugs have not been studied for possible different
11effects during a 24-hour cycle. Therefore, patients are directed to take most drugs during the morning or evening
12primarily to ensure compliance. Over 50 years ago, researchers found that the cholesterol drug simvastatin is more
13effective at lowering cholesterol levels when taken at night rather than during the day. This is because the liver
14enzyme (酶) these drugs target is more active at night. Taking medicine at the wrong time can even cause harm. My
15colleagues and I wondered whether midazolam, the most common sedative (镇静剂) used in surgical procedures worldwide, might
16interfere with the internal clock that protects the heart at night. Currently, there are no guidelines regarding when
17midazolam should be administered. More research is needed to determine the best times to administer treatments for
18different diseases. I believe taking drug timing into account could help make treatments more effective and help more
19people worldwide.
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