sunday housecall. it s been a huge topic of discussion for a while now. the lasting effects of concussions such as those suffered on football field happens to be the theme of a new film by will smith called concussion. football greats like harry carson also speaking out about this brain injury. unfortunately, you can t really make the game safer. you know, you can put all of the sophisticated helmets that you want on players, but, again, the helmet protects the skull. it does not protect the brain. it s up to the parents as to what they allow their kids to do. part of the reason why i m so vocal is i want parents to understand what they re signing their kids up for. this is not about bashing football. it s not about bashing the nfl. meanwhile, also learning about a new type of pressurized neck collar they say can prevent mild concussions during sports.
what happens with the virus, it comes into your body, takes over your immune system, makes you susceptible to get diseases such as pneumonia, mum know sister tis knpneumonia, a type of skin cancer that can kill. he s not alone. there s about 30 million people out there that have this disease. i think it s important to really stick to the regiment. but always practice safe sex. that s a key. marc, we heard so much about this in the 80s when it first started and started to spread. now it almost comes to some people like a surprise that, a, you re living so long and it seems to be be so kind of an availability to be accepted. i m so glad. because of these drugs. exactly right, eric. i m so glad we re talking about this today. i trained on hiv in the 80s and 90s. more than half of my case load as an intern was aids. hiv is not aids. it s the virus that causes aitdz. how does it do that? hiv attacks your immune system,