Labrador Retrievers are energetic dogs, delighted to work and play hard. They need to be taken on a daily, brisk, long walk, jog or run alongside you when you bicycle. While out on the walk the dog must be made to heel beside or behind the person holding the lead, as in a dog's mind the leader leads the way, and that leader needs to be the human. They will be in their glory if you give them a job to do. Gain weight easily, do not over feed.

All dogs have the potential to develop genetic health problems, just as all people have the potential to inherit a particular disease. Run, don’t walk, from any breeder who does not offer a health guarantee on puppies, who tells you that the breed is 100 percent healthy and has no known problems, or who tells you that her puppies are isolated from the main part of the household for health reasons. A reputable breeder will be honest and open about health problems in the breed and the incidence with which they occur in her lines. Here’s a brief rundown on what you should know about some of the medical conditions that can affect the Labrador’s health.
Zanjeer ("Chain", or "Shackles"), a detection dog who detected arms and ammunition used in the 1993 Mumbai (Bombay) serial explosions. During his service, he helped recover 57 country-made bombs, 175 petrol bombs, 11 military grade armaments, 242 grenades and 600 detonators. His biggest contribution to the police force and the city was the detection of 3,329 kg of RDX. He also helped detect 18 Type 56 rifles and five 9mm pistols.
It has been shown that out of all dog breeds, it is the Labrador Retriever that is most likely to be obese.[73] In a 2016 published study it was shown that out of 310 Labradors, most were missing all or parts of the POMC gene. This gene plays a part in appetite regulation as well as indication of the amount of one's stored fat. The study concluded that the absence of that gene had a significant impact on Labrador weight and appetite.[70][73] The POMC gene mutation is present in only one other breed – the Flat-Coated Retriever.[70]