Mr Motivator - has opened up for the first time on his tragic family circumstances, after his mother-in-law was diagnosed with dementia.The exercise instructor admitted life had to be "put on hold" in order to help care for his family alongside his wife, Sandra.He has been providing support for Sandra while she in turn supports her mum, who is living with dementia - acting as a 'secondary carer' in providing support to his wife as the primary carer.Appearing via video link on BBC's Morning Live on Thursday, Derrick offered his advice for secondary carers like him: "I think the most important thing is you just need to be aware and look for changes in the one you love."And those changes may mean you need to change or put your life on hold for.
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