US researchers have suggested that a drug used to lower blood pressure could be even more effective in fighting Alzheimer's disease than what their previous study cited.

People taking angiotensin receptor blockers (ARBs) were up to 50% less likely to bitten by dementia than those taking other blood pressure drugs. However, it, taken with another drug ARBs, also protected against further worsening condition among those already with the disease.

Latest study reveals that dementia engulfs some 35 million people around the world and the number of cases, and their impact on health policy and the economic and social expense of healthcare, is on the track to grow significantly as populations age.

The recent study aims to discover an effective means to protect against Alzheimer's and tackle the worsening scenario, as the number of people worldwide with the condition is set to soar as life expectancy grows.

Previous studies have revealed that implementing steps to guard against heart disease and diabetes may also boost the chances of fighting against dementia and Alzheimer's.

Research also cited that people who take cholesterol-lowering drugs known as statins have a weaker risk of falling prey to dementia. However, diabetics who take pills that help their bodies or use insulin have a lower risk of Alzheimer's.