If the percentage of PWP's is 1% for people over 60, then the percentage for two people will be 1% times 1% (I think). This means that 1 person in 100 has parkinsons disease. But it also means that in couples 1 in 10000, both are PWP's. On this list there are approximately 2000 people therefore the probability of a couple with Parkinsons is 20%. Are there any on the list? Or do you know any? This is a long winded way of asking: how do they manage? A related question is. What happens if the caregiver becomes disabled? K-F Etzold