NATURAL BORN THRILLS

Men's Health offers a white knuckled look at what makes a man's heart race:

• 38 percent of men report that heights freak them out. 
• 80 percent of men freaked out by heights say they would over come that phobia if a woman dared them to skydive. 
• 88 percent of men have driven 100 mph or faster on the highway. 
• 50 percent of men have talked a woman into skinny-dipping. 
• 30 percent of men say they are fearless enough to strip down and streak. 
• 78 percent of women say they are turned on by scars that accompany high-octane tales. 
• 34 percent of men have spent time in the ER paying the price for an adrenaline rush. 
• 42 percent of men say they would swim with sharks. 
• 12 percent of men have never ridden an roller coaster. 
• 90 percent of wannabe Mavericks say they would fly shot gun in an F-16. 
• 20 percent of men would probe the depths in a deep sea submarine. 
• 87 percent of women say a taste for adventure is a must have trait in guy. 
• 45 percent of gals say they are braver than their mates. 
• 53 percent of men would run with the bulls in Pamplona, Spain. 
• 64 percent of men have considered a Kilimanjaro summit attempt. 
• 12 percent of men have gone bungee jumping.