In a gym full of iron-pumping muscle men (and women), starting a weight training routine can be somewhat scary. But don’t let the intimidation keep you from building those muscles! Lifting weights has been shown to reduce body fat, boost metabolism, and build bone density. To begin the journey to bigger muscles, try the Greatist-tested workout described here.

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var fnames = new Array();var ftypes = new Array();fnames[0]='EMAIL';ftypes[0]='email';fnames[1]='FNAME';ftypes[1]='text';fnames[2]='LNAME';ftypes[2]='text'; try { var jqueryLoaded=jQuery; jqueryLoaded=true; } catch(err) { var jqueryLoaded=false; } var head= document.getElementsByTagName('head')[0]; if (!jqueryLoaded) { var script = document.createElement('script'); script.type = 'text/javascript'; script.src = 'http://ajax.googleapis.com/ajax/libs/jquery/1.4.4/jquery.min.js'; head.appendChild(script); if (script.readyState && script.onload!==null){ script.onreadystatechange= function () { if (this.readyState == 'complete') mce_preload_check(); } } } var script = document.createElement('script'); script.type = 'text/javascript'; script.src = 'http://downloads.mailchimp.com/js/jquery.form-n-validate.js'; head.appendChild(script); var err_style = ''; try{ err_style = mc_custom_error_style; } catch(e){ err_style = 'margin: 1em 0 0 0; padding: 1em 0.5em 0.5em 0.5em; background: ERROR_BGCOLOR none repeat scroll 0% 0%; font-weight: bold; float: left; z-index: 1; width: 80%; -moz-background-clip: -moz-initial; -moz-background-origin: -moz-initial; -moz-background-inline-policy: -moz-initial; color: ERROR_COLOR;'; } var head= document.getElementsByTagName('head')[0]; var style= document.createElement('style'); style.type= 'text/css'; if (style.styleSheet) { style.styleSheet.cssText = '.mce_inline_error {' + err_style + '}'; } else { style.appendChild(document.createTextNode('.mce_inline_error {' + err_style + '}')); } head.appendChild(style); setTimeout('mce_preload_check();', 250); var mce_preload_checks = 0; function mce_preload_check(){ if (mce_preload_checks>40) return;

mce_preload_checks++;

try {

var jqueryLoaded=jQuery;

} catch(err) {

setTimeout('mce_preload_check();', 250);

return;

}

try {

var validatorLoaded=jQuery("#fake-form").validate({});

} catch(err) {

setTimeout('mce_preload_check();', 250);

return;

}

mce_init_form();

}

function mce_init_form(){

jQuery(document).ready( function($) {

var options = { errorClass: 'mce_inline_error', errorElement: 'div', onkeyup: function(){}, onfocusout:function(){}, onblur:function(){} };

var mce_validator = $("#mc-embedded-subscribe-form").validate(options);

$("#mc-embedded-subscribe-form").unbind('submit');//remove the validator so we can get into beforeSubmit on the ajaxform, which then calls the validator

options = { url: 'http://greatist.us2.list-manage.com/subscribe/post-json?u=32102b33cde61812e73270af4&id=4fee4617f5&c=?', type: 'GET', dataType: 'json', contentType: "application/json; charset=utf-8",

beforeSubmit: function(){

$('#mce_tmp_error_msg').remove();

$('.datefield','#mc_embed_signup').each(

function(){

var txt = 'filled';

var fields = new Array();

var i = 0;

$(':text', this).each(

function(){

fields[i] = this;

i++;

});

$(':hidden', this).each(

function(){

var bday = false;

if (fields.length == 2){

bday = true;

fields[2] = {'value':1970};//trick birthdays into having years

}

if ( fields[0].value=='MM' && fields[1].value=='DD' && (fields[2].value=='YYYY' || (bday && fields[2].value==1970) ) ){

this.value = '';

} else if ( fields[0].value=='' && fields[1].value=='' && (fields[2].value=='' || (bday && fields[2].value==1970) ) ){

this.value = '';

} else {

this.value = fields[0].value+'/'+fields[1].value+'/'+fields[2].value;

}

});

});

return mce_validator.form();

},

success: mce_success_cb

};

$('#mc-embedded-subscribe-form').ajaxForm(options);

});

}

function mce_success_cb(resp){

$('#mce-success-response').hide();

$('#mce-error-response').hide();

if (resp.result=="success"){

$('#mce-'+resp.result+'-response').show();

$('#mce-'+resp.result+'-response').html(resp.msg);

$('#mc-embedded-subscribe-form').each(function(){

this.reset();

});

} else {

var index = -1;

var msg;

try {

var parts = resp.msg.split(' - ',2);

if (parts[1]==undefined){

msg = resp.msg;

} else {

i = parseInt(parts[0]);

if (i.toString() == parts[0]){

index = parts[0];

msg = parts[1];

} else {

index = -1;

msg = resp.msg;

}

}

} catch(e){

index = -1;

msg = resp.msg;

}

try{

if (index== -1){

$('#mce-'+resp.result+'-response').show();

$('#mce-'+resp.result+'-response').html(msg);

} else {

err_id = 'mce_tmp_error_msg';

html = '

'+msg+'

';

var input_id = '#mc_embed_signup';

var f = $(input_id);

if (ftypes[index]=='address'){

input_id = '#mce-'+fnames[index]+'-addr1';

f = $(input_id).parent().parent().get(0);

} else if (ftypes[index]=='date'){

input_id = '#mce-'+fnames[index]+'-month';

f = $(input_id).parent().parent().get(0);

} else {

input_id = '#mce-'+fnames[index];

f = $().parent(input_id).get(0);

}

if (f){

$(f).append(html);

$(input_id).focus();

} else {

$('#mce-'+resp.result+'-response').show();

$('#mce-'+resp.result+'-response').html(msg);

}

}

} catch(e){

$('#mce-'+resp.result+'-response').show();

$('#mce-'+resp.result+'-response').html(msg);

}

}

}

>