Meditation app Calm sacks one-fifth of staff

Wellness tech company, which enjoyed a boom in custom during the Covid lockdown, has let 90 of its 400 staff go

Michelle Obama announces second book: ‘a toolbox to stay centred’

The Light We Carry, to be published in November, compiles the former first lady’s best strategies for surviving in the face of a ‘rising tide of bigotry and intolerance’

How much money is needed for ideal life? Most are OK with £8m, study finds

Research counters idea that everyone wants to be as rich as possible, though many Americans want $100bn

My Chemical Romance: how the vilified band turned antipathy into triumph

MCR split but survived emo’s moral panic to leave a shining legacy for all outsiders – especially young people struggling emotionally or those who refuse gender binaries

US sexually transmitted infections surged to record high in 2020

Reported cases dropped in early months of Covid-19 pandemic but disrupted healthcare and diverted resources aided sharp rise

My sleepy brain loves the sound of permanent daylight savings. But do scientists agree?

The US Senate voted to get rid of twice-yearly time changes this week. But sleep experts warn they’re taking the wrong approach to a real problem

US boy with uncombable hair syndrome becomes Instagram hit

Locklan Samples of Georgia has a rare condition that means his hair stands out from the scalp and cannot be combed flat

Amazon reportedly circling exercise bike maker Peloton as company falters

Peloton has struggled in recent months with lockdown over, negative press and cheaper models coming to the market

Global heating linked to early birth and damage to babies’ health, scientists find

Exclusive: Impacts include premature births and birth defects and affect everybody, everywhere, say researchers

Has gen Z really killed off dieting – or has it just changed its name?

Body positivity is all the rage and soft drinks are being repackaged as ‘zero sugar’. But is ‘clean eating’ just dieting in disguise, asks Arwa Mahdawi