KELOWNA, B.C. - A Kelowna, B.C., man has been giving — and not receiving — for more than 50 years, and he's proud to say there's still a lot more in him to give. Literally.

Seventy-year-old Ken Davies has just donated blood for the 500th time.

He says he has rolled up his sleeve regularly since the age of 18, and now he's setting his sights on his 600th donation.

Canadian Blood Services allows donations from healthy adults every 56 days, so at that rate, Davies will be at least 85 before he reaches his next goal.

He says regular donations help the sick and injured, but he believes they are good for him, too.

According to Davies, giving blood is like changing the oil in your car. (CKFR)

Also on HuffPost:

Loading Slideshow...
  • Signing up to <a href="http://www.blood.ca/CentreApps/Internet/UW_V502_MainEngine.nsf/page/you_can_be_the_one_match_to_save_a_life?" target="_hplink">OneMatch</a>'s stem cell and bone marrow registry is easier than ever, done both online and through the mail. Go to OneMatch.ca, fill out the form and the test is sent via post.

  • Check out <a href="http://www.onesight.org/na/" target="_hplink">OneSight</a> and other organizations that accept donations of old eyeglasses that can be passed on to the one billion people around the world who need glasses.

  • Donate old medical supplies - wheelchairs, walkers, crutches, unused incontinence pads, diapers, bath towels - to organizations like the <a href="http://www.starfish-project.com/" target="_hplink">StarFish Project</a> that ship supplies to HIV clinics in Nigeria.

  • Grow your hair for someone else! Donate your long hair to programs like <a href="http://www.cancer.ca/ontario/how you can help/od-hold your own event/cuts for cancer fundraiser.aspx?sc_lang=en" target="_hplink">Cuts for Cancer</a> that create wigs for cancer patients.

  • Make sure to fill out your organ donation cards and inform your family of your wishes. Many provinces include the organ donation card when you receive a driver's license.

  • Keep up-to-date on the changing rules and regulations around donating blood. And know your type: At 39 per cent, Canada's most common blood type is O+; at less than 1 per cent, the least common blood type is AB-.