#Hamlin set off 'every alarm' in the ICU after the Bills opening #touchdown, doctor says

Damar #Hamlin shows 'signs of improvement' while still in ICU in critical condition, Bills say, after mid-#game cardiac arrest

Widow of only #NFL player to die on the field watched Damar #Hamlin's collapse in horror

American football star Damar #Hamlin is the latest athlete to encounter #heart problems during competitive play.