T.eenagers are twice as likely to be hyperactive if their mothers are anxious during pregnancy and in their early years, a new study has shown.
While around five per cent of youngsters usually experience some symptoms of Attention Deficit Hyperactivity Disorder (ADHD) by the age of 16, the number jumps to 11 per cent of those whose mothers suffer anxiety.
Although some anxiety is natural during pregnancy and the early years of motherhood, researchers have measured extreme symptoms such as trembling, insomnia, dizziness and sweating.
In one study about a quarter of women tested showed medium to high anxiety.
Researchers say they can't be sure of a causal link, but have speculated that high …