Stephen Sackur asks Karen Miller-Kovach, chief scientist at Weight Watchers International, if there is something fundamentally unhealthy about our growing obsession with diets and weight loss.

Germany suspends its annual payments to the UN-backed Global Fund against Aids, tuberculosis and malaria, following claims of corruption.

Lack of sleep needs to be treated as a major health issue, according to the Mental Health Foundation.

Thousands of children placed in care far from home are more vulnerable to criminality, drug abuse and sexual exploitation, warn children's charities.

Plans to cut bed numbers at one of north Wales' main hospitals as part of a major redesign are up for discussion.

Dr John O'Neill explains how "clock genes" are not solely responsibly for our internal body clock

As part of his week-long happiness quest, David Sillito gets involved in a new experiment looking at what is really going on inside our heads.

Men and women in managerial jobs are heavier drinkers than those in manual occupations, according to official statistics which also show a fall in alcohol-related deaths.