4,830
(1,500)

Body and Brain Connection

There are 70 Body and Brain Connection achievements (50 without DLC) worth 4,830 (1,500)

3,965 tracked gamers have this game, 35 have completed it (0.88%)

Bachelor's in Physical68 (20)

Complete 70% or more of the Physical category.

• Unlocked by 344 tracked gamers (9% - TA Ratio = 3.39) 3,968

Achievement Guide for Bachelor's in Physical

Solution
OK, the 55%, 70%, 85% are kind of misleading.

It doesnt mean beat that % of the challenges in the category (which would be 7,9,11 out of 12 games). Nor does it mean score a total of that % of the possible 120000 points in the category (which would mean 66000, 84000, 102000 points)

Its based on the grades you get for each game.

Use this scale
A+ - 7 points
A - 6 points
B - 5 points
C - 4 points
D - 3 points
E - 2 points
F - 1 point

This gives you a maximum score for the category of 84 points (12 games * 7 A+ grades). You need the required % of this (took a while of playing with figures to work this out).

This means you need :

47 points for the 55% cheevo
59 points for the 70% cheevo
72 points for the 85% cheevo

Go into My Data and look at your grades. Add them up using the scale above and see how close you are. Each grade increase adds 1 to your total so, for example, if you have :
5 A+ (5x7 = 35 points)
2 A (2x6 = 12 points)
3 B (3x5 = 15 points)
2 C (2x4 = 8 points)

This will give you a total of 70 points, 2 short of the 85% target. Increase any 2 of the games by a single grade (or one of them by 2 grades) and the cheevo will pop.