Grammar
Style guide 
Squinting adverbial modifiers
Avoid using ambiguous adverbs that have different meanings depending on how you read the sentence. These are known as ‘squinting’ adverbial modifiers.
Children who play in the sun often have a high risk of skin cancer.
This sentence could mean that all children who play in the sun have a high risk of skin cancer, or that children who play in the sun a lot are at high risk of skin cancer.
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Other grammar tips include:
me, myself, I am
prepositions - in and at
who and that
dangling modifiers
subjunctive - recommend that