Would it take an individual over one year to acclimatize to the new climate of the region when climbing Everest?

Yes or no?

A friend of mine climbed Kili, it too him about a week to acclimatise. It is not going to take more than a few weeks.

For an attempt on Everest is summit you're going to need to carry oxygen.

Get a prescription for Diamox from your doctor.

No.it takes a few weeks.

It really depends on ur personal fitness level. To perform at peak it really needs a about a month of climbing to increasing levels with rest days at lower levels.
As long as u sleep at lower levels than u reach during the day ur chances of getting AMS (altitude sickness) r reduced.
Do not take Diamox unless u have already tried to climb high & have had AMS symptoms. As Diamox is used to treat AMS if u r already using it & get AMS u r in trouble hon'.

Are u thinking of going high or just asking?

Something to keep in mind for preparing for altitude is that acclimatization begins around 6,000ft/1830m so spend weekends above this when u can, it does help.

If u have the chance to go above about 12,000ft/3660m, most people go through a pretty good change by this level, so, working with a heavy pack to that altitude helps a lot to know what happens even higher.

Compared to the 8000m peaks this is a very moderate altitude yet it gives u a feel for when to bring the heart-rate back down & when to keep going, tricks to staying hydrated & having enough calories when u do not feel like eating . things u would not think about but r really important at altitude.

I've found liquid diets useful for bicycling distance & this works for me for the blahs at altitude, guzzle 700 calories in a bottle of protein chocolate mix, done. Other times, soups with lots of dehydrated peas or refried beans tossed in for more carbo's, only thing is it has to get heated up then eaten & for the liquid diet the water does not have to boil .

Good advice is to learn the details: Work on ur feet every day at least once to warm them up, rinse them off with a facecloth & dry them out; using thin liner socks allow u to wash those & dry them more often since it is not a big deal like the thicker socks. This matters for frostbite at altitude but works for hiking in general.

Sounds easy . until u do not have the energy to put the snow in the pot & get the stove going to melt water to get the energy to take anything off, so that is part of the training, it is how to get yourself to roll over & do it when ur body is telling u that you're crazy & it is totally impossible to move at all.

I've listed about the best, most specific book on the physiology of high altitude, it is by climbers who r specialists in the science & definitely worth reading for anyone interested in treking or climbing at high altitudes.

l found the sections on how the body changes it is chemical balance very clear & useful, with bits on the diets that work best & why.

Have a blast & stop often to soak up the scene.