Other studies have found no such effect on heart rate.

On the other hand, at least one study found no effect.

And to their surprise, they found no effect at all.

Four saw mixed effects and only one found no effect.

But none of these studies has found a similar effect in younger women.

Several studies have tried to confirm the claim but found no effect.

Investigators found his body and personal effects on the bus.

Some studies have not found a protective effect from drinking.

The researchers found a similar effect when students imagined a good or a bad season for a college football team.

Another study, conducted independently in London, found a similar effect.