A VIAGRA-style pill for WOMEN could help millions to finally achieve the Big O.

Researchers have uncovered a substance that boosts female sexual arousal, increasing her chance of orgasm.

The findings could pave the way for a drug similar in effect to Viagra, which has helped countless men.

Until now experts have been baffled by the fact that 40 per cent of women have trouble getting turned on at some point in their lives.

But answers may have been found by a team working for Pfizer, the pharmaceutical firm behind Viagra, in Sandwich, Kent.

Lead researcher Chris Wayman said: "We're beginning to establish pathways involved in sexual arousal."

A single aspirin eases blinding headaches in more than 50 per cent of migraine sufferers, a study has found.