Humans have always strived to augment their own limited abilities with the help of various tools and aids. The horse allowed one to travel faster, the binoculars allowed one to see further.
Also the human body has been augmented and enhanced, especially when having dysfunctions. In ancient Egyptian times seashells were used as dental implants and, in more recent times, the first heart pacemaker was implanted in human patient in 1958. Today artificial joints, ligaments, hearing aids, dental implants, insulin pumps and other enhancements are so common that it is considered a standard practice and nothing out of the ordinary.
With improved implant techniques and the creation of direct nerve connectors, body and sense enhancing implants are a common practice in 2050. They enhance the capabilities in normal functioning humans and provide normal or enhanced capabilities for impaired people. The visual implants make the blind see and the hearing implants make the deaf hear. Muscle implants make the weak stronger. Neural implants make the lame walk. New organs can be manufactured when needed using the recipient's own DNA as blueprint. Life expectancy has increased; being 100 years old is nothing exceptional and scientist believe that many people will reach 150 years or more. Using DNA reprogramming and cell rejuvenation techniques there is no theoretical upper limit to life expectancy.
The cerebral implants enhance the cognitive abilities, improve memory, and continuously scan the blood stream for irregular levels of hormones or dangerous substances. The implants greatly enhance human intellectual, physical, and psychological capacities. In 2040 artificial intelligence and robots achieved greater than human intelligence and by 2050 even an average household robot has more intelligence than a non-enhanced human. The line between humans and machines has been blurred and in many areas of life no difference is made.