Pregnancy heartburn, the cause?

<p><span class="apple-converted-space"><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif'; color: black; mso-themecolor: text1;">&nbsp;</span></span><span style="font-size: 9.0pt; font-family: 'Arial','sans-serif'; color: black; mso-themecolor: text1;">Many women will experience heartburn during their pregnancy. <span class="apple-style-span"><span style="background: white;">Heartburn (also called acid indigestion or acid reflux) is a burning sensation that often extends from the bottom of the breastbone to the lower throat. It's caused by some of the hormonal and physical changes in your body. It is normal to occur in pregnancy. If your sister is following all food diet that is good for pregnancy than still she can suffer from heartburn as it is a symptom of pregnancy. During pregnancy, the placenta produces the hormone progesterone, which relaxes the smooth muscles of the uterus. This hormone also relaxes the valve that separates the esophagus from the stomach, allowing gastric acids to seep back up, which causes that unpleasant burning sensation</span>. Tips to prevent heartburn are : </span></span><span style="background: #F4F4F4;">Avoid food and drink triggers such as acidic foods, carbonated beverages, spicy, fatty foods or anything that causes you indigestion.</span><span style="background: #F4F4F4;">Instead of eating big meals, eat several smaller meals throughout the day.</span><span style="background: #F4F4F4;">Give yourself 2-3 hours to digest your food before bedtime.</span><span style="background: #F4F4F4;">Try sleeping on your side or at an incline if you&rsquo;re having trouble sleeping.</span><span style="background: #F4F4F4;">Carry antacids with you, everywhere.</span></p> <p style="margin-top: .25in; margin-right: 0in; margin-bottom: .25in; margin-left: 0in; background: white;">&nbsp;</p>