Being suddenly young again would certainly be delightful for a while but there's a huge psychological burden that comes with living for a long time Such as wha

Being suddenly young again would certainly be delightful for a while but there's a huge psychological burden that comes with living for a long time Such as what exactly? No-one knows - including you - because no-one has ever run old "software" on young/rejuvenated "hardware". I think that 99% of people in failing hardware given the option to try their 18- or even 30-year old bodies again would jump at the chance and worry about vague hand-wavy "psychological burdens" later - or perhaps not ever if the new body didn't age...