Aging and aged

Not only the aged but also everybody is always aging.

We are always changing as at least we are always aging following the one-way nature of time.

• aging: 老化的過程
• the aged: 老人們

"Aging is the process of growing older, a process that includes physical changes and, sometimes, mental changes. 'The aged' refers to elderly people, those who have reached an advanced age."

[ref] http://www.enotes.com/nursing-encyclopedia/aging-aged