Enough with the redundant BS. This person is obviously a smoker AND implies they already understand cigarettes have an impact on your physical health. Dancing around the web to find just a few results, I'll share some statistics (if you want to find a "healthier" cigarette, check the list at my source for low tar and CO measurements; if you want to wean off cigarettes, scan through the nicotine column)
Marlboro Light, King Size, Hard Pack: 10mg Tar, 0.8mg Nicotine, 11mg CO
Marlboro, King Size, Hard Pack: 16mg Tar, 1.1mg Nicotine, 14mg CO
and one more light for fun-
Newport Lights, King Size, Hard Pack: 9mg Tar, 0.7mg Nicotine, 12mg CO
As a more direct response: Marlboro Lights are "better" for you than full-flavored Marlboros. They have comparable figures to other light cigarettes, but again - check my source for an outdated FTC report on 1206 brands in 1994,