Stay up to date with notifications from The Independent Notifications can be managed in browser preferences. All News Sport Culture Lifestyle Related: BBC presenter reveals father is 'fighting hard' after suffering stroke Researchers have identified a potential cause for lacunar strokes, a type of stroke affecting 35,000 people in the UK annually. A study by experts at the University of Edinburgh and the UK Dementia Research Institute suggests these strokes may stem from the widening of tiny brain arteries, rather than narrowing. This discovery could explain why current treatments, such as anti-platelet drugs, are often ineffective for lacunar strokes. Patients with widened arteries were found to be four times more likely to suffer a lacunar stroke and also had a higher risk of “silent strokes”. The findings, published in Circulation, are being used in ongoing trials to develop new therapies targeting the underlying microvascular damage.…