Experts say seeking alternatives that deliver the same dose of oestrogen by the same method is key

Women in the UK are again facing shortages of some HRT products, with warnings they could persist for weeks. We take a look at the situation.

Rules mean single-sex wards, toilets and changing rooms will now be used by people based on their biological sex

Trans women will no longer be placed on female-only wards under new NHS England guidance on single-sex spaces.

The new rules, published on Thursday, mean single-sex wards, toilets and changing rooms will be used by people based on their biological sex, not their gender identity.

Rebecca Hope Duncan says she has not received any help after being assessed as autistic, in response to Prof Peter Fonagy’s review of mental health, ADHD and autism services. Plus letters from Jeremy Seymour, John Bryant, Peter Deadman, Steve Bamford and another reader

Your coverage of the Fonagy review concentrates on children and on the risk of diagnosing too readily (NHS at risk of ‘system failures’ as demand for ADHD and autism care soars, inquiry finds, 9 October). I’d like to speak for those of us who were not diagnosed at all.

I first asked for help at 17. For 34 years I was treated for anxiety, depression and trauma. All were real; none were the whole story. I was diagnosed as autistic at 51. The same report identified ADHD, which until 2013 could not officially be diagnosed alongside autism.

The government must stop allowing foreign companies to have access to our sensitive data, writes Ian White. Plus a letter from Bill Cawley

The UK cannot become dependent on foreign AI technology that can be switched off at short notice, says George Williamson, head of the Alan Turing Institute (Report, 10 October). The growing opposition to Palantir, an American company, having government contracts that give it access to sensitive data are all part of the same issue. The UK does not have digital sovereignty.

This is not a theoretical problem. The US government imposed targeted sanctions on the international criminal court, stopping all digital services to certain individuals. This could happen to a country.