The BBC's chief international correspondent Lyse Doucet is reporting from Tehran for the first time since the crackdown by security forces on nationwide anti-government protests last month. Iran's leaders are marking 47 years since the Islamic Revolution, with bunting and flags decorating the streets of Tehran. But the pain is still raw after unprecedented force was used to put down the protests.

Also in the programme: we speak to US Congressman on viewing the underacted Epstein files; and we look at new research which suggests brain exercises could help delay the onset of dementia.

(Photo: People walk next to a mural with a picture of Iran's Supreme Leader, Ayatollah Ali Khamenei, on a street in Tehran. Credit: Majid Asgaripour/WANA/Reuters)