The research team, led by Joyce McClendon Evans, determined the effect of very short exposure to tobacco, cooking oil, or wood smoke in 21 women and 19 men. Participants' mean age was 35 and all were non-smokers. Each person sat in a 10'x10' room during the 10 minute exposure to one of the three types of smoke.Interestingly, men and women showed different cardiovascular responses to the smoke.