We think it's because these nuns had a high level of cognitive reserve, which is a way of saying that they had more functional synapses.
आमच्या मते, या लोकांच्या मेंदूची कार्यक्षमता प्रचंड होती. म्हणजेच त्यांच्याकडे कार्यक्षम सीनॅप्स भरपूर होते.