Rob Herbert does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

How can we explain the fact that no single species predominates? A generally accepted hypothesis is that a trade-off exists between organisms able to acquire and consume more food than other when ...

If the data falls in the critical region, statisticians reject the null hypothesis in favor of the alternative. A one-tailed test in statistics is used to determine if a sample mean is significantly ...

As I’ve discussed previously, conventional wisdom suggests that using social media promotes poor mental health, especially in teenagers. But there is good reason to question this idea. As more ...

In early 2018, two high-profile clinical trials of drugs for Alzheimer’s disease ended in disappointment. The drugs joined a long list of potential treatments that have failed to deliver significant ...

Last week, the pharmaceutical company Merck pulled the plug on a closely watched Alzheimer’s drug trial. The drug verubecestat, an outside committee concluded, had “virtually no chance” of benefit for ...