Before receiving the tally counter, they had completed a number of questionnaires and were asked to estimate how often they had daily thoughts about eating, sleeping and sex.'If you had to know one thing about a person to best predict how often they would be thinking about sex, you'd be better off knowing how they felt about sexuality, as opposed to knowing whether they were male or female,' said Terri Fisher, professor of psychology at Ohio State University's Mansfield campus and lead author of the study.'When a man hears a statement like that, he might think there's something wrong with him because he's not spending that much time thinking about sexuality, and when women hear about this, if they spend significant time thinking about sex they might think there's something wrong with them.'These included a sexual opinion survey to measure a positive or negative emotional orientation toward sexuality; a sociosexual orientation inventory measuring attitudes about sex and tracking sexual behavior and levels of desire; a social desirability scale to measure respondents' tendency to try to appear socially acceptable; and an eating habits questionnaire and sleepiness scale.

Russell, 17, was one of the five students shot in the killing spree at Chardon High School on Monday along with Demetrius Hewlin and Daniel Parmertor.

Joy Rickers, 18, and Nick Walczak, 17, were injured.

Nick had not been hit yet as I jumped over him.' Joy Rickers and Nick Walczak.

While Ms Rickers was released from hospital, Mr Walczak's family said the 16-year-old he has been left paralysed by the shooting and has two bullets still lodged in his body.

After dating Lane, she and King started to date on and off, but the relationship became more serious in recent months, the friends said.

They also said King had made jokes about Lane and said he was going to beat him up.'That shot I saw TJ take had hit Russell and he was over the table in a pool of blood, and Demetrius was on the floor in a puddle of blood next to him.

Others were instructed to use the device to record thoughts about eating that included food, hunger, cravings, snacking or cooking, and thoughts about sleep that included dreaming, sleeping, napping, going to bed or needing rest.

The questions about food and sleep were designed to mask the true intent of the study's focus on thoughts about sex, Fisher said.

Men also think about sleeping, eating and other basic biological functions more than women - and any men who have spent the previous few decades worrying that they may not be 'manly' enough as they don't 'think about sex every seven seconds' can rest easy.

The average man thinks about sex 20 times a day or less, say researchers from Ohio State University.

The college-student participants carried a golf tally counter to track their thoughts about either eating, sleep or sex every day for a week.