Hey hackers, do you have a sedentary lifestyle? Holding your breath for 40 seconds might be tougher than you think. Try it out with holdbreathfor40seconds.com and test your lung capacity!<p>(We're are working on an app that helps boost your health with quick 5-minute activities.We learned it is hard for tech people, who have a sedentary lifestyle to even hold their breath for 30 seconds(not all, but some) - so made this simple web page to test it).<p>Let me know your comments.