The benefits of good posture

grain /greɪn/ noun
2. [ C ] a very small piece of a hard substance
grains of sand
venom /ˈvenəm/ noun
1. a poisonous liquid which some snakes, insects, etc. produce when biting or stinging
unleash /ʌnˈliːʃ/ verb [ T ]
to release suddenly a strong, uncontrollable and usually destructive force
At worst, nuclear war could be unleashed.
breakthrough /ˈbreɪk.θruː/ noun [ C ]
an important discovery or event that helps to improve a situation or provide an answer to a problem
Scientists are hoping for a breakthrough in the search for a cure for cancer.
-bodied /-bɒd.id/ /-bɑː.did/ suffix
1. having a particular type of body
a long-bodied insect
a soft-bodied doll
drift /drɪft/ verb [ I usually + adv/prep ]
to move slowly, especially as a result of outside forces, with no control over direction
A mist drifted in from the marshes.
excrete /ɪkˈskriːt/ verb [ I or T ] formal
to get rid of material such as solid waste or urine from the body
Most toxins are naturally excreted from the body.
inject /ɪnˈdʒekt/ verb
1. to use a needle and syringe (= small tube) to put a liquid such as a drug into a person's body
Phil's a diabetic and has to inject himself with insulin every day.
potent /ˈpəʊ.t ə nt/ /ˈpoʊ.t ̬ ə nt/ adjective
very powerful, forceful or effective
Surprise remains the terrorists' most potent weapon .
lethal /ˈliː.θ ə l/ adjective
able to cause or causing death; extremely dangerous
Three minutes after the fire started, the house was full of lethal fumes.
tentacle /ˈten.tə.kl ̩/ /-ə-/ noun [ C ]
one of the long thin parts like arms of some sea creatures, which are used for feeling and holding things, catching food or moving
predate /ˌpriːˈdeɪt/ verb [ T ] slightly formal
to have existed or happened before another thing
These cave paintings predate any others which are known.