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Electromagnetic radiation — it might sound like something that you’d be better off avoiding, but electromagnetic waves of various kinds underpin our senses and how we interact with the world — from the light emissions through which your eyes perceive these words, to the microwaves that carry the Wi-Fi signal to your laptop or phone on which you’re reading it.
Experiments dating back to the 1960s show people have less of a reaction to viewing an unpleasant image or experiencing an electric shock when they know it’s coming than when they’re not expecting it. That’s because uncertainty, a long-known cause of anxiety, makes it difficult to prepare for events or to control them.
Marijuana. Pot. Weed. Whatever you call it, it’s the most popular illegal drug in the world, gaining support for legalisation for both medicinal and recreational purposes. But what does marijuana actually do to us? Let’s take a look at this fascinating drug, its health effects, and potential concerns about using it.
When you are exhausted, nothing is worse than lying in bed desperately trying and failing to fall asleep. You might have better luck drifting off into dreamland if you try to stay awake instead.