ATLANTA -- Sixty years ago, 1 million men and women signed up for the first-ever Cancer Prevention Study. They filled out surveys every few years. And the information from those million Americans led to a dramatic discovery.

Doctor Alpa Patel with the American Cancer Society is the lead researcher on CPS3, the third generation of the cancer prevention studies.

MORE | Join the Cancer prevention Study 3

"The first study was actually set up to specifically address the question of whether not smoking caused lung cancer, and it provided the first evidence that in fact smoking is what was the causal fact, causal factor with the increase rise in lung cancer death rates we were seeing in men at that time," she said.

ROSWELL, Ga. -- Consumers interested in experiencing first-hand the impact of Alzheimer’s disease are invited to attend a free sensitivity training event on January 31 in Roswell.

Presented by Second Wind Dreams, the Atlanta-based nonprofit changing the perception of aging, the event will give the public the opportunity to experience The Virtual Dementia Tour®, a 20-minute long scientifically proven method of building a greater understanding of dementia through the use of sensory tools and instruction.

Local families, business leaders, first responders, and church groups are invited to join with the more than 500,000 people in 14 countries who have experienced the tour.

Conn Jackson chats with Al Roker about his connection to Atlanta, how he has maintained his weight loss, his new memoir and much more!