Health & safety 2 entries

• Sleep Paralysis: Why You Wake Up Unable to Move — and What to Do About ItWaking up aware but unable to move — sometimes with a terrifying presence in the room — is sleep paralysis: a common, usually harmless glitch at the border of REM sleep and waking. Here is what it is, why it happens, how to cope, and when it is worth seeing a doctor.→
• Is lucid dreaming safe? What the evidence actually saysLucid dreaming sounds exotic, so it is natural to wonder whether it is risky. For most healthy people the honest answer is reassuring: it is a normal feature of sleep and is not, in itself, linked to poorer mental health. The real, avoidable risk is to your sleep — from induction methods that fragment the night. Here is what the evidence shows, where it is genuinely uncertain, and who should be cautious.→