Blood plays an important role in the ageing process, and the health of older people is receiving new attention in science as a result. Researchers are studying how changes in the composition of blood affect getting older. Previous experiments with mice show that old blood can be harmful, while young blood may have beneficial effects. Scientists are now investigating whether modifying certain substances in the blood can contribute to better health at a later age.
In addition, there is progress in therapies aimed at ‘reprogramming’ cells. This means that cells can be made younger again by temporarily changing their properties. This technique is still in the experimental phase, but could help in the future in preventing age-related diseases.
Research into reducing growth hormones has been shown to extend lifespan in animals, but the effect in humans is less significant. Calorie restriction, a low-calorie diet without malnutrition, does improve health, but extends lifespan only to a limited extent. Therefore, research is also being conducted into medicines that can mimic the benefits of this diet.
The immune system changes with age and this contributes to inflammation and brain deterioration. This weakening can lead to problems such as memory loss. Better understanding of this process can help in the development of treatments to combat cognitive decline.
These new scientific insights offer hope for heritage towards a healthier and more active ageing, with fewer complaints and illnesses.
Source: Reason
