How tiring will this job be?

[LOVELYDOVEY05]

I have been offered a part-time job cleaning sinks and toilets in a care home plus some hovering of 2 public rooms. 2/3 days a week.
People keep telling me it will be tiring but My current job does not tire me so why not try?

Not tiring at all if you're fit and healthy?

I'm not fit or healthy but spend 8 hrs a day cleaning an entire train station. Granted I'm knackered