Chronic asthma sufferers have to keep track of everything from symptoms to medications. The way FireLogic (703/415-0180, www.healthengage.com ) sees it, the Mac is the perfect tool for storing that data. So the company developed HealthEngage. Available for Mac OS 8.6 or later--including OS X--HealthEngage is a $60 database that charts asthma information. Users can enter their peak flow results--measurements of an asthmatic's ability to push air out of the lungs--and print out the data in a chart that's easy for doctors to read. FireLogic plans to release similar software for other chronic diseases later this year, making the Mac a hub not just for the digital lifestyle, but for a healthy one as well.