Background: Old age begins in the mid-60s and lasts until the end of life. Most people over 65 have retired from work, freeing up their time for hobbies, grandchildren, and other interests. Stamina, strength, reflex time, and the senses all decline during old age, and the number of brain cells decreases as well. The immune system becomes less efficient, increasing the risk of serious illnesses such as cancer and pneumonia. Diseases such as Alzheimer’s disease that cause loss of mental function also become more common.

Situation: Mark retired recently. While he enjoyed spending time with his grandchildren he often felt like he could not keep up with them. He was also having trouble remembering things.

Question: Is mark over or under 65?

Situation: Mark retired recently. While he enjoyed spending time with his grandchildren he often felt like he could not keep up with them. He was also having trouble remembering things.

Question: Who is getting old?

Situation: Sue was active often rock climbing on the weekend. During the week she enjoyed her job and looking after her children. Her neighbor Beth had retired a few years ago. When not spending time gardening or visiting with friends she enjoyed spending time with her grandchildren. She often asked her grandchildren to help her in the garden as she found she no longer had the stamina to garden all day.

Question: Who is older?

Situation: Sue was active often rock climbing on the weekend. During the week she enjoyed her job and looking after her children. Her neighbor Beth had retired a few years ago. When not spending time gardening or visiting with friends she enjoyed spending time with her grandchildren. She often asked her grandchildren to help her in the garden as she found she no longer had the stamina to garden all day.

Question: Who is younger?

Situation: Sue was active often rock climbing on the weekend. During the week she enjoyed her job and looking after her children. Her neighbor Beth had retired a few years ago. When not spending time gardening or visiting with friends she enjoyed spending time with her grandchildren. She often asked her grandchildren to help her in the garden as she found she no longer had the stamina to garden all day.

Question: Who probably under 65?

Situation: Sue was active often rock climbing on the weekend. During the week she enjoyed her job and looking after her children. Her neighbor Beth had retired a few years ago. When not spending time gardening or visiting with friends she enjoyed spending time with her grandchildren. She often asked her grandchildren to help her in the garden as she found she no longer had the stamina to garden all day.

Question: Who probably over 65?

Situation: Sue was active often rock climbing on the weekend. During the week she enjoyed her job and looking after her children. Her neighbor Beth had retired a few years ago. When not spending time gardening or visiting with friends she enjoyed spending time with her grandchildren. She often asked her grandchildren to help her in the garden as she found she no longer had the stamina to garden all day.

Question: Who's immune system is more efficent?

Situation: Sue was active often rock climbing on the weekend. During the week she enjoyed her job and looking after her children. Her neighbor Beth had retired a few years ago. When not spending time gardening or visiting with friends she enjoyed spending time with her grandchildren. She often asked her grandchildren to help her in the garden as she found she no longer had the stamina to garden all day.

Question: Who's immune system is less efficent?

Situation: Sue was active often rock climbing on the weekend. During the week she enjoyed her job and looking after her children. Her neighbor Beth had retired a few years ago. When not spending time gardening or visiting with friends she enjoyed spending time with her grandchildren. She often asked her grandchildren to help her in the garden as she found she no longer had the stamina to garden all day.

Question: Who's at higher risk for cancer?

Situation: Sue was active often rock climbing on the weekend. During the week she enjoyed her job and looking after her children. Her neighbor Beth had retired a few years ago. When not spending time gardening or visiting with friends she enjoyed spending time with her grandchildren. She often asked her grandchildren to help her in the garden as she found she no longer had the stamina to garden all day.

Question: Who's at lower risk for cancer?

Situation: Sue was active often rock climbing on the weekend. During the week she enjoyed her job and looking after her children. Her neighbor Beth had retired a few years ago. When not spending time gardening or visiting with friends she enjoyed spending time with her grandchildren. She often asked her grandchildren to help her in the garden as she found she no longer had the stamina to garden all day.

Question: Who has better reflexes?

Situation: Sue was active often rock climbing on the weekend. During the week she enjoyed her job and looking after her children. Her neighbor Beth had retired a few years ago. When not spending time gardening or visiting with friends she enjoyed spending time with her grandchildren. She often asked her grandchildren to help her in the garden as she found she no longer had the stamina to garden all day.

Question: Who has slower reflexes?

Situation: Bob and Elaine are neighbors. Elaine goes for a five mile run every morning before work. She hasn't been sick in years and is proud to be healthy and physically fit. Bob retired last year. He is not as active as he used to be but he takes advantage of his extra free time to build cabinets and other furniture, something he has always enjoyed doing.

Question: Who is younger?

Situation: Bob and Elaine are neighbors. Elaine goes for a five mile run every morning before work. She hasn't been sick in years and is proud to be healthy and physically fit. Bob retired last year. He is not as active as he used to be but he takes advantage of his extra free time to build cabinets and other furniture, something he has always enjoyed doing.

Question: Who is older?

Situation: Bob and Elaine are neighbors. Elaine goes for a five mile run every morning before work. She hasn't been sick in years and is proud to be healthy and physically fit. Bob retired last year. He is not as active as he used to be but he takes advantage of his extra free time to build cabinets and other furniture, something he has always enjoyed doing.

Question: Who has more stamina?

Situation: Bob and Elaine are neighbors. Elaine goes for a five mile run every morning before work. She hasn't been sick in years and is proud to be healthy and physically fit. Bob retired last year. He is not as active as he used to be but he takes advantage of his extra free time to build cabinets and other furniture, something he has always enjoyed doing.

Question: Who has less stamina?

Situation: Bob and Elaine are neighbors. Elaine goes for a five mile run every morning before work. She hasn't been sick in years and is proud to be healthy and physically fit. Bob retired last year. He is not as active as he used to be but he takes advantage of his extra free time to build cabinets and other furniture, something he has always enjoyed doing.

Question: Who is less likely to get sick?

Situation: Bob and Elaine are neighbors. Elaine goes for a five mile run every morning before work. She hasn't been sick in years and is proud to be healthy and physically fit. Bob retired last year. He is not as active as he used to be but he takes advantage of his extra free time to build cabinets and other furniture, something he has always enjoyed doing.

Question: Who is more likely to get sick?

Situation: Bob and Elaine are neighbors. Elaine goes for a five mile run every morning before work. She hasn't been sick in years and is proud to be healthy and physically fit. Bob retired last year. He is not as active as he used to be but he takes advantage of his extra free time to build cabinets and other furniture, something he has always enjoyed doing.

Question: Who is more brain cells?

Situation: Bob and Elaine are neighbors. Elaine goes for a five mile run every morning before work. She hasn't been sick in years and is proud to be healthy and physically fit. Bob retired last year. He is not as active as he used to be but he takes advantage of his extra free time to build cabinets and other furniture, something he has always enjoyed doing.

Question: Who is fewer brain cells?

Situation: Bob and Elaine are neighbors. Elaine goes for a five mile run every morning before work. She hasn't been sick in years and is proud to be healthy and physically fit. Bob retired last year. He is not as active as he used to be but he takes advantage of his extra free time to build cabinets and other furniture, something he has always enjoyed doing.

Question: Who is more at risk for cancer?

Situation: Bob and Elaine are neighbors. Elaine goes for a five mile run every morning before work. She hasn't been sick in years and is proud to be healthy and physically fit. Bob retired last year. He is not as active as he used to be but he takes advantage of his extra free time to build cabinets and other furniture, something he has always enjoyed doing.

Question: Who is less at risk for cancer?